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| | Pantek - Expert Linux and Open Source Services: : RFC #3372: Session Initiation Protocol for Telephones |
 | | In this flow, in order to seamlessly integrate the IP network with the PSTN, it is important to preserve the received SS7 information within SIP requests at the originating gateway and reuse this SS7 information when signaling to the PSTN at the terminating gateway. | | | The terminating gateway converts to ISUP signaling and directs the call to an appropriate PSTN interface, based on information that is present in the received SIP header. | | | Feature transparency of ISUP is central to the notion of SIP-T. Compatibility between the ISUP variants of the originating and terminating PSTN interfaces automatically leads to feature transparency. |
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http://www.pantek.com/library/general/rfc/rfc3372.html
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| | RFC 2458 (rfc2458) - Toward the PSTN/Internet Inter-Networking--Pre-PINT I |
| | Upon receiving the request and the associated data, the PSTN translates the data into the proper facsimile format and delivers it to the Beijing hotel as specified in the fax request. | | | A purely representational example of a SIP URL might be sip:+12125551212@foo.example.com, where foo.example.com is the host serving as a gateway into the PSTN. | | | This contrasts with the Internet, where the underlying datagram nature of the infrastructure means that data packets are carried over different routes, depending on the combined traffic flows through the network at the time. |
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http://www.faqs.org/rfcs/rfc2458.html
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| | Voice Service Interworking for PSTN and IP Networks |
| | A PSTN terminal can be either digital or analog. | | | In the IP world driven by the Internet Engineering Task Force (IETF), interworking with the PSTN has been the result of a logical extension to the IP telephony service, which is seen as one of many IP applications. | | | For these reasons, the ability to interconnect IP telephony users to PSTN users is an essential feature. |
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http://www.comsoc.org/ci/private/1999/may/Hamdi.html
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| | Mandragor & Apinc - Free Documentation Base |
| | The generic complex case of converting the whole PSTN addressing into e-mail is out of scope in this minimal specification: there is some work in progress in the field, where also a number of standard optional extensions are being defined. | | | Allocchio Standards Track [Page 4] RFC 2303 Minimal PSTN in Internet Mail March 1998 It is essential to remind that "pstn-address" element MUST strictly follow the "quoting rules" spcified in the relevant standards [2], [3]. | | | This object is a an e-mail address which conforms to RFC822 [2] and RFC1123 [3] "addr-spec" syntax, with some extra structure which allows the PSTN number to be identified. |
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http://docs.mandragor.org/files/RFCs/23xx/2303
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| | PSTN and Analog Testing |
| | Major PSTN and Analog Functionality (Abacus 5000/Abacus 1) | | | Spirent’s PSTN solution addresses the performance and functional testing needs of developers and implementers of legacy telephony and IP telephony products. | | | Abacus 100 is an analog call generator that simulates 100 analog telephony subscribers placing and terminating calls. |
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http://www.spirentcom.com/analysis/technology.cfm?WS=13&SS=177
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| | Fusion Developer's Manual (6378-13): PSTN Interface Control |
| | AG TRAU channels are reserved paths for processing voice data received from PSTN and packet network interfaces. | | | AG TRAU programs encode and decode data according to a variety of algorithms (for example, G.723.1), perform on-board echo cancellation, and perform mu-law or A-law encoding. | | | Tracking the number and type of available AG TRAU channels is important for gateway applications that simultaneously run different kinds of AG TRAU programs (for example, G.723.1 and GSM). |
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http://www.nmscommunications.com/manuals/6378-13/chap4.htm
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| | Our community VoIP to PSTN Service |
| | We have developed a backend software system running on our servers which allows this pot to be used by members, via our SIP server and PSTN gateway, to make outbound calls on their SIP phones (whether software or hardware). | | | It has always been our aim to develop innovative services to better serve our users and contributors. | | | Callers paying more than our quoted rates really should switch provider. |
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http://www.voipuser.org/forum_topic_328.html
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| | Mixing PSTN traffic on Partial Private Circuit infrastructure - 18 October 2002 |
| | The Director is aware that the actual level of demand will depend on the level of the set-up charge and has therefore used the information collected from the OLOs together with the information contained in BT’s feasibility study to arrive at a range of charges as set out in table 2.1 in chapter 2. | | | On the basis of the information currently available from BT, if Design 2 is adopted there appears to be no cost-savings therefore no rebates will be payable. | | | Figure 1 below illustrates how the design 1 works. |
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http://www.ofcom.org.uk/static/archive/oftel/publications/broadband/leased_lines/ppc1002.htm
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| | [OpenH323]VoIP gw - connecting to PSTN with an ISDN modem |
| | The hardware that you need in this flow is the PSTN gateway. | | | > Instead of buying an expensive PSTN card that is supported by the gateway software, I decided to use some of the hardware i found. | | | The VoIP and PBX are given with business logic. |
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http://www.openh323.org/pipermail/openh323/2003-April/060652.html
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| | Pstn - Encyclopedia.WorldSearch |
| | EDEVICE ANNOUNCES INDUSTRY'S FIRST VOICE-ENABLED INTERNET MODEM FOR PSTN VOIP PHONES.(Product Announcement) : An article from: Federal Computer Market Report | | | ARIEL ANNOUNCES OCTAL T1/E1/PRI COMPACTPCI NETWORK INTERFACE CARD SWITCHES 240 PSTN CALLS ON A SINGLE 6U CARD.(Product Announcement) : An article from: Federal Computer Market Report | | | Introduction to Telecom Switching : Circuit Switching, Packet Switching, Optical Switching, Crossbar, TSI, Data Routing, and Virtual Circuits |
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http://encyclopedia.worldsearch.com/pstn.htm
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| | [OpenH323]Can openh323 support connect ad-hoc wireless networkwith PSTN? |
| | You can use OpenH323 software in your PSTN endpoint with something like a Quicknet LineJACK, or you can talk to a third-party box such as a Cisco AS5300 that has a PSTN interface. | | | If you need to connecto the PSTN, then you need an endpoint with a PSTN interface. | | | Put in > another way, if h.323 gateway connect with wireless network, what hardware > and software needed? |
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http://www.openh323.org/pipermail/openh323/2001-October/049745.html
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| | [Vocal] Re: gw PSTN 3600 |
| | Our question is if this router (3600) can also interface PSTN <-> SIP. | | | We would like to know if it is possible toconfigure the Cisco 3600 router to make thetranslation between the PSTN <-> H323 or PSTN<->Sip, because we dont have the AS5300. | | | Mohit A. Lad writes: > > Hi, > > You may check out the latest addition to Vovida.org - SIPRG. |
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http://www.vovida.org/pipermail/vocal/2002-May/005107.html
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| | IEC: Advancing the All-Packet Network |
| | Anything on the network before a switch is considered to be “line-side” or “preswitch,” whereas anything after the ingress Class-5 switch is considered “trunk-side.” Hot spots can occur as a result of unplanned network loading on both the line side and trunk side of the PSTN. | | | This scenario does not lend itself to economical, rapid scaling to meet new demand for subscribers or for additional network load due to increasing dial-up Internet call hold times. | | | Although all Class-5 switches perform the same tasks within the network, there are two types of Class-5 switches from a connection standpoint. |
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http://www.iec.org/online/tutorials/all_packet/topic03.html
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| | PSTN fallback |
| | In a typical fallback scenario, you will configure your branch office router with a connection to the Internet and the PSTN. | | | If this value, which predicts the quality of the connection by providing delay, jitter and packet loss information for each voice-destination IP address, drops below the threshold you determine, the router will set up any future H.323 calls across the PSTN instead of the data network. | | | One example is PSTN Fallback, which is a newer feature, offered by Avaya, Cisco, Siemens and most other VoIP vendors. |
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http://whatis.techtarget.com/tip/1,289483,sid7_gci552915,00.html?FromTaxonomy=/pr/286859
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| | eDbox-100 - SmartStack™ for PSTN |
| | Based on widely available components such as a small-footprint international DAA and a DSP from the Analog Devices 218x family, the eDbox-100 combines both hardware and software modules to manage a PSTN connection, PPP negotiation and Internet protocols such as IP, TCP, POP3, SMTP and FTP. | | | The eDbox-100 from eDevice is an easy to use add-on hardware package. | | | Suggested for devices that do not need an "always-on" Internet connection |
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http://www.edevice.com/content/solution/box.htm
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| | Communications Solutions (TM) Feature Article |
| | The PSTN is too expensive to extend for data. | | | The PSTN is an inefficient system for carrying data traffic. | | | Bursty data traffic over the PSTN also creates operational and cost inefficiencies on circuit-switched networks. |
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http://www.tmcnet.com/scripts/print-page.aspx?PagePrint=http://www.tmcnet.com/comsol/1201/1201flu.htm
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| | broadband » Forums » Voice over IP » PSTN.....is going to Die! |
| | It is still too easy for a hacker to set up a network of computers to attack externally exposed servers. | | | Those PSTN phones will be excellent interfaces to the technology for a while until the wireless phone systems turn into custom local PBXs. | | | PSTN is not an efficient communications delivery method which dooms it to death eventually. |
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http://www.dslreports.com/forum/remark,10739304~mode=flat
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| | Aswath Weblog: PSTN/VoIP Applications |
| | In my opinion, that is why many VoIP service providers would like to offer features that are not available to PSTN users. | | | Interesting that “Intelligent Network” of PSTN is being revisited. | | | Almost all other features and services can be offered to PSTN users as well. |
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http://www.mocaedu.com/mt/archives/000021.html
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| | Aswath Weblog: Verizon One is PSTN and not VoIP Phone? |
| | I chuckled when I read their CIO claim, “It allows our customers to tap the intelligence of our network in ways never before thought possible.” First of all, the CIO is proudly proclaiming that the network is intelligent, countering the “rise of the stupid network”. | | | Andy asks whether the newly announced Verizon One, an integrated modem, router and cordless phone is a VoIP phone. | | | I'm sure you could plug it into an ATA, including the one supplied with Verizon Voicewing, but then you would be able to use it only as a regular phone and wouldn't benefit from the other features. |
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http://www.mocaedu.com/mt/archives/000109.html
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| | Ixia - Voice / VoIP / PSTN Testing |
| | IxVoice is a comprehensive hardware and software test framework that provides unified VoIP and PSTN test solutions for the telecom/network equipment manufacturer, carrier and enterprise markets. | | | IxVoice automates the testing of networks and devices using a multi-interface, multi-technology approach while measuring and analyzing Quality of Voice and Quality of Fax. | | | With its cost-effective and scalable test libraries it addresses all major VoIP protocols: SIP, SCCP (Skinny), H.323, MGCP, H.248 (MEGACO) as well as TDM and analog telephony services. |
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http://www.ixiacom.com/products/voice_testing
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| | PSTN - FAQ - Shared dedicated co-location hosting |
| | Copyright (c) 2005 CEZEO software, Instant Messaging software Web links Contact us | | | PSTN generally delivers about 52 Kbps (52,000 bits per second). | | | It started with human-operated, analogue, circuit-switching systems (called plugboards) and has evolved into electromechanical switches so that the transmission is completely digital-except for the final connection to the subscriber (the "last mile") which is why Internet users are opting for DSL, an always-on connection with better speed. |
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http://www.exxzero.com/faq/pstn
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| | Microsoft Internet Security & Acceleration Server (ISA) 2000 - Public switched telephone network (PSTN) call ... |
| | Microsoft Internet Security and Acceleration Server (ISA) 2000 - Public switched telephone network (PSTN) call scenario | | | The public switched telephone network (PSTN) is a standard, circuit-switched network that is optimized for real-time voice communication. | | | All users are able to make calls to PSTN numbers by using NetMeeting to dial the number from their desktops. |
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http://www.microsoft.com/resources/documentation/isa/2000/enterprise/proddocs/en-us/isadocs/gk_scen_ip-pstn.mspx
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| | The Jeff Pulver Blog: Survival of the Fittest: Will it be VoIP or the PSTN? |
| | While it might make for good forum fodder to take an extreme position on these topics, it seems as if some of the members don't recognize that VoIP as a technology platform is already being used as an enabling technology on the PSTN. | | | In reality, the legacy PSTN will be around for a very long time as traffic moves from it to other networks, which will include both broadband and cellular, maybe Wi-Fi and WiMax and new networks not yet defined. | | | So in my book, I expect both "VoIP" and the PSTN to survive - but for different reasons. |
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http://pulverblog.pulver.com/archives/000969.html
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| | SPA-3000 Frequently Asked Questions (FAQ) |
| | A: There are 2 ways to do this. | | | The information can be used in association with the | | | (under PSTN User tab) to between 1-8, and different from what Line 1 is using. |
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http://www.sipura.com/support/spa3000faq/Section_4.html
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| | PINT (PSTN and Internet Interworking) (Linktionary term) |
| | For example, a user visiting a Web shopping site may need more information about a product they want to buy. | | | There are many instances when Internet users need to access the PSTN and PSTN users need to access Internet telephony services. | | | In the latter, a PSTN telephone user needs to connect with an IP-based telephony system. |
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http://www.linktionary.com/p/pint.html
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| | SPA-3000 Frequently Asked Questions (FAQ) |
| | Make sure the above simple scenario works first. | | | If incoming VoIP calls do not match the patttern, the SPA will not auto-answers, and the VM will have a chance to to take over. | | | A: Call from SPA FXS, for example in Germany, to call US PSTN number (SPA-3000 FXO) Analog Phone - [FXS(spa1) ] ---> [Internet] ---> [ FXO(spa2)] ---> US PSTN Example above is you want to pickup your phone in Germany and dial a US PSTN number. |
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http://www.sipura.com/support/spa3000faq/Section_2.html
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| | Public Switched Telephone Network - Wikipedia, the free encyclopedia |
| | The basic digital circuit in the PSTN is a 64-kilobits-per-second channel, originally designed by Bell Labs, called a "DS0" or Digital Signal 0. | | | Originally a network of fixed-line analog telephone systems, the PSTN is now almost entirely digital, and now includes mobile as well as fixed telephones. | | | The access network and inter-exchange transport of the PSTN use synchronous optical transmission (SONET and SDH) technology, although some parts still use the older PDH technology. |
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http://en.wikipedia.org/wiki/PSTN
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| | New Telephony - New Dialpad Service Marries VoIP, PSTN |
| | Reports: Google, Comcast Want to Buy Part of AOL | | | There is a call-waiting feature, so if calls come in on both lines, one can be put on hold while the other is answered. | | | The adaptor includes a router, so consumers don't have to buy a separate one, as well as a PSTN connection to bring in the existing phone service to the same phone. |
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http://www.newtelephony.com/news/51h14162119.html
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| | CommsDesign - MoIP: Making PSTN Modems Work on IP Networks |
| | Doradus Technologies is a world-class solutions provider offering an elite combination of intellectual property licensing, research and development consultancy as well as design services in the area of communication technology. | | | The signal quality may vary dramatically on the PSTN but the delay is constant and the signal is always present. | | | The impairments of a packet-based network are fundamentally different than those of the PSTN.. |
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http://www.commsdesign.com/design_corner/OEG20030312S0017
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| | * PSTN - (Telecom): Definition |
| | than 1,000 simultaneous circuits into the Public Switched Telephone Network (PSTN). | | | Telephone system connecting subscribers to the Public Switched Telephone Network (PSTN) using radio signals rather than copper wire for part or all of the connection between the subscriber and the switch... | | | The overall constellation has the capacity to serve as many as 9 million... |
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http://en.mimi.hu/telecom/pstn.html
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| | PSTN (Public Switched Telephone Network): Teledatacom Glossary |
| | Today, it is almost entirely digital in technology except for the final link from the central (local) telephone office to the user. | | | PSTN (public switched telephone network) is the world's collection of interconnected voice-oriented public telephone networks, both commercial and government-owned. | | | Because Internet service providers ISPs pay the long-distance providers for access to their infrastructure and share the circuits among many users through packet-switching, Internet users avoid having to pay usage tolls to anyone other than their ISPs. |
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http://www.artesyncp.com/resources/glossary/pstn.html
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| | ENERGY INTELLECT PSTN Communications Devices |
| | Energy Intellect offers two PSTN data modem models that are optimised for use with our TMA series of poly-phase electronic meters. | | | The system is set to trigger an automatic response if the electricity demand is predicted to exceed a certain level. | | | Number of devices on RS485 line: maximum 32 devices supported |
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http://www.energyintellect.com/html/comms_PSTN.html
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| | First Generation Tenor Command Reference P5.2.1 - PSTN Trunk Group Prompt Commands |
| | Depending on the application, this trunk group may actually be associated with the PBX interface instead of the PSTN. | | | Trunk group 1 is created for you to start. | | | Guidelines: Trunk group 1 is always created, by default, for you with 24 channels from the PSTN line/interface added. |
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http://www.quintum.com/support/1G/sysdoc/webhelp/pstn_trunk_group_prompt_commands.htm
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| | Telefono: Tutte le informazioni su Telefono su Encyclopedia.it |
| | Quando viene utilizzata una connessione digitale per il singolo impianto telefonico, di solito si utilizza una linea ISDN (Integrated Services Digital Network). | | | Un telefono senza filo consiste in una base che è connessa alla linea telefonica e comunica per mezzo di onde radio con un apparecchio portatile. | | | Si tratta di una vera e propria centrale telefonica che adotta una specifica numerazione per i telefoni interni, di solito raggiungibile anche come derivazione dalla linea telefonica pubblica. |
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http://www.encyclopedia.it/t/te/telefono.html
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| | How VoIP relates to the PSTN |
| | Private voice network systems like PBX and key systems work with the PSTN to create a hybrid public/private network. | | | The PSTN includes a signaling system, a series of central offices and a distribution network. | | | In the PSTN, voice network features are delivered to a user on a static pair of copper wires to a static local central office switch or PBX. |
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http://www.networkworld.com/newsletters/converg/2004/0809converge2.html
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| | PSTN_Lifeline |
| | Yes, P2602HWL allows you to make outgoing PSTN call via a prefix number that is defined in the configurable lifeline table. | | | It allows you to store up to 9 pre-stored number. | | | Can I receive incoming PSTN call through P2602HWL? |
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http://www.zyxel.com/support/supportnote/p2602hw/faq/PSTN_Lifeline.htm
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| | Line interface unit for PSTN Universal |
| | MLX32001 implements the DC-handler of a universal PSTN Line Interface. | | | It is fully telephone line powered and digital control is performed by a special UARTFLEX. | | | Powered by PSTN line (less than 10 mA power consumption during offline) |
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http://www.melexis.com/prodmain.asp_Q_family_E_MLX32001
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| | Wireless Telehealth PSTN Gateway from RTX |
| | RTX Healthcare has signed a turnkey development contract with a North American Medical Device manufacturer to design and develop a wireless and handheld medical device. | | | If you need further information regarding our Wireless Telehealth PSTN Gateway, or how we can help develop a wireless version of your medical device/solution, please contact sales on email or on Tel +45 9632 2300. | | | RTX Healthcare focuses entirely on providing world class wireless connectivity solutions for medical and healthcare devices. |
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http://pstn-telehealth-gateway.rtx.dk
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| | Dialpad Integrates PSTN 911 Service With Broadband Phone Devices and Products |
| | These DSL users and others who are not ready to completely switch to a VoIP-only solution are the target market for DialpadUSA. | | | Since virtually all DSL users and customers with alarm systems are required to keep an underlying PSTN service, we felt it was better to leverage the benefits of this local phone service rather than to replicate those features. | | | The dpPhone connects to both a user's existing phone line as well as to the Internet to seamlessly move 911 and local calls to the PSTN while sending long distance and international calls through Dialpad. |
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http://www.prnewswire.com/cgi-bin/stories.pl?ACCT=109&STORY=/www/story/04-27-2005/0003489336&EDATE=
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| | SMS on PSTN |
| | The protocol standard I wrote above describes the system I am talking about. | | | This protocol is used to send SMS on a fixed line to another entity connected on a PSTN or GSM networks. | | | The SMS over PSTN system is already running in a several countries around the world. |
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http://www.edaboard.com/ftopic69379.html
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| |
| | Overview of the PSTN and Comparisons to Voice over IP |
| | But, before explaining the present state of the PSTN and what's in store for the future, it is important that you understand PSTN history and its basics. | | | As such, this chapter discusses the beginnings of the PSTN and explains why the PSTN exists in its current state. |
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http://www.ciscopress.com/articles/article.asp?p=336863
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| | PSTN White Papers, Webcasts and Product Information from Top IT Vendors |
| | PSTN White Papers, Webcasts and Product Information from Top IT Vendors | | | This report includes PESQ, PESQ-LQ and estimated delay voice quality measurements between a service user and a PSTN phone across a simulated 1Mbps SDSL wide area network with no packet loss or other network impairments. | | | Since the US DOS approved participation in a "single golden tree" for ENUM last July, industry heavyweights have been battling for control. |
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http://americanbanker.bitpipe.com/rlist/orgtypegrp/ANALYST/PSTN.html
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| |
| | ADSLguide: How ADSL Works - Local Exchange |
| | The voice wiring is connected to BT's PSTN network (which we do not cover in this guide) and the ADSL wiring is connected to a device known as a DSLAM. | | | When your telephone line arrives at the local exchange, the ADSL and voice components of the signal are split apart in the same way as your splitter works at home or in the office. | | | The picture (above, right) shows a series of Fujitsu patch panels used to split wiring pairs into their respective POTS and ADSL components. |
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http://www.adslguide.org.uk/howitworks/exchange.asp
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| | VoIP Howto: Communications using PSTN line |
| | So your decision will be taken considering PSTN line costs. | | | VoIP becomes very interesting when you start to use PSTN lines to call other people in the world, directly to their home telephone. | | | You can select (after called your PC1 gateway) every PC2 you want (for example a PC2 living in England to call an English person so that you'd pay only intra-country costs). |
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http://jamesthornton.com/linux/HOWTO/VoIP-HOWTO-8.html
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| | Pac-West Telecomm Launches PSTN On Ramp |
| | PSTN On Ramp enables Pac-West to expand its service offerings to its existing customer base, as well as reach new customer segments. | | | About Pac-West Telecomm, Inc. Founded in 1980 and first incorporated in 1981, Pac-West Telecomm, Inc. has been offering telephone service to its customers since 1982. | | | By 2010, IDATE predicts that IP business calls will exceed 50% of all business traffic. |
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http://www.prnewswire.com/cgi-bin/stories.pl?ACCT=109&STORY=/www/story/09-22-2004/0002257113&EDATE=
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