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The call agents are the software switching elements of the softswitch. Other components handle functions for billing, directory services, network signaling. The network elements that convert voice streams between VoIP links and traditional media technologies, such as analog telephone lines, pair-gain
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phone calls. In practice, such devices can often do both. An access server might take a mobile call or a call originating from a traditional telephone line, convert it to IP traffic, then send it over an IP network to another such device, which terminates the call by reversing the process and
375:, the main function of the Class 4 softswitch is the routing of large volumes of long-distance VoIP calls. The most important characteristics of Class 4 softswitch are protocol support and conversion,
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Class 5 softswitches are intended to serve subscribers. Class 5 softswitches are characterized by additional services for end-users and corporate clients such as
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devices, carrier systems, are called media gateways. A call agent may control many different media gateways in geographically dispersed areas via an IP network.
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between subscribers or other switching systems across a telecommunication network. Often a softswitch is implemented to switch calls using
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319:. Such locations have high capacity connections to carry telephone calls or digital communication to other switching centers.
258:, but implemented in software running on a general-purpose computing platform. Like its traditional counterparts it connects
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Softswitches used for transit VoIP traffic between carriers are usually called Class 4 softswitches. Analogous with other
337:(SS7) network. SS7 modules may be implemented directly in the softswitch, or accessed from standalone signaling servers.
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telephone jack to a residence. Embedded multimedia terminal adapters (eMTAs) are also built into cable television modems.
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VoIP softswitches are subdivided into Class 4 and Class 5 systems, in analogy to the traditional functions in the
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Access devices to the services of a softswitch range from large media gateways with high port density to
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technically refers to any such device, it is conventionally applied to a device that handles IP-to-
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or "media gateway" is used to refer to devices that either originate or terminate traditional
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platform, types of authorization, QoS, Business Groups and other features similar to other
326:(IAD) at office locations, to small analog telephone adaptors (ATA) which provide just one
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call to circuit-switched digital systems using traditional digital
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The softswitch generally resides in a building owned by a
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is rarely used in the IMS context, where it is called an
344:(IMS), the softswitch element is represented by the
90:. Unsourced material may be challenged and removed.
383:rate, average time of one call routing, number of
266:(VoIP) technologies, but hybrid systems exist.
333:A softswitch routes telephone calls using the
16:Software based telecommunications call routing
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53:Learn how and when to remove these messages
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230:Learn how and when to remove this message
212:Learn how and when to remove this message
150:Learn how and when to remove this message
175:This article includes a list of general
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645:Motion-triggered contact insufficiency
438:"Carrier VoIP saw turnaround in 2012"
340:At the turn of the 21st century with
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88:adding citations to reliable sources
436:Buckley, Sean (February 20, 2013).
181:it lacks sufficient corresponding
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366:public switched telephone network
34:This article has multiple issues.
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394:features, call center services,
360:Class 4 and Class 5 softswitches
250:) is a call-switching node in a
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417:Software defined mobile network
354:access gateway control function
75:needs additional citations for
42:or discuss these issues on the
348:(MGC) element, while the term
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640:Miniature snap-action switch
315:or central office, or in a
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400:Class 5 telephone switches
373:Class 4 telephone switches
294:time-division multiplexing
252:telecommunications network
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324:integrated access devices
346:media gateway controller
277:calls, while the phrase
775:Vandal-resistant switch
620:Magnetic proximity fuze
342:IP Multimedia Subsystem
335:Signalling System No. 7
196:more precise citations.
720:Silicone rubber keypad
780:Wireless light switch
555:Electric switchboard
84:improve this article
820:Telephone exchanges
525:Contact protection
515:Centrifugal switch
313:telephone exchange
269:Although the term
256:telephone exchange
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785:Zero speed switch
309:telephone company
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625:Magnetic starter
615:Lightning switch
565:Half-moon switch
535:Crossover switch
505:Battery isolator
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412:Telephone switch
385:concurrent calls
381:calls per second
296:(TDM) or analog
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765:Transfer switch
745:Strowger switch
740:Stepping switch
735:Staircase timer
690:Railroad switch
650:Nintendo Switch
630:Magnetic switch
605:Latching switch
580:Inertial switch
575:Infinite switch
530:Crossbar switch
495:Analogue switch
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288:converting the
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442:Fierce Telecom
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700:Rotary switch
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500:Banyan switch
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101: –
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95:Find sources:
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73:This article
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760:Touch switch
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715:Sense switch
665:Piezo switch
610:Light switch
600:Limit switch
595:Knife switch
560:Float switch
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396:calling card
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99:"Softswitch"
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82:Please help
77:verification
74:
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36:Please help
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755:Time switch
705:Sail switch
695:Reed switch
685:Push-button
680:Push switch
675:Pull switch
660:Photoswitch
585:Kill switch
550:Dry contact
377:transcoding
317:data center
311:, called a
300:protocols.
194:introducing
809:Categories
750:Thermostat
725:Softswitch
710:Sea switch
590:Key switch
570:Humidistat
545:DIP switch
510:Cam switch
423:References
350:softswitch
271:softswitch
244:softswitch
202:March 2011
177:references
110:newspapers
39:improve it
730:Spark gap
285:land line
45:talk page
815:Switches
540:Cryotron
406:See also
356:(AGCF).
275:IP phone
140:May 2007
190:improve
124:scholar
483:Switch
392:IP PBX
179:, but
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119:
112:
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485:types
131:JSTOR
117:books
328:RJ11
298:POTS
103:news
86:by
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379:,
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242:A
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128:·
121:·
114:·
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51:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
