Citel Technologies Canada

Citel is a provider of unique Voice over Internet Protocol solutions. Citel''s Portico TVA (Telephone VoIP Adapter) enables companies to migrate to IP telephony by leveraging their existing wiring infrastructure, reducing the cost and time involved in the

Citel supports most leading PBX platforms and more than 100 handset types. For complex deployments, most EXTender models can utilize local T1 or FXO circuits to support local dial tone for local-presence and survivability.

EXTenders are available in several configurations ranging from one to 24 ports and are stackable, supporting single remote workers, large branch offices, and everything in between.

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Citel Technologies
151 North Rivermede Rd.,Concord , Ontario
Concord
Ontario ,L4K 0C4
Canada

Phone: +1 416-644-5527
Phone: +1 206-957-6270
Site: http://www.citel.com

Hardware
Hosted PBX Service Provider
Hosted VoIP billing service provider
International VoIP Wholesale Provider
Internet Telephony Service Provider
Internet VoIP and Video Conferencing Service Provider
Wireless Broadband

Call Back
Call Relay VoIP Solutions
Call Routing VoIP Solutions
Call shop solution
H.323 Softswitch & CPE
H.323 VoIP Gateway
H.323 Wireless/ GSM VoIP Solutions
Hosted PBX
IP devices
Polycom

2N
Asterisk
Asterisk
Asterisk

IP PBX
IP Phone

FaxSIPit Services Inc.

Smart SIP

Providers in database: 6433

SDP Protocols Are Used To Transmit Media Session Information

In 1998, the Internet Engineering Task Force (IETF) published the specification for a Session Description Protocol or SDP as a format that describes parameters for streaming media. The original IETF Proposed Standard was updated in 2006 as RFC 4566. Although the SDP was created as a feature of Session Announcement Protocol (SAP), it can be used with Real-time Transport Protocol, Real-time Streaming Protocol (RTSP), and Session Initiation Protocol, as well as a standalone protocol. Parameter negotiation, session announcement and session invitation are included in the descriptive sessions from the SDP protocol. Rather than transmit data like other types of protocols, an SDP negotiates between media type endpoints, format and properties involved. A session begins when a connection is established, and the session is terminated only after every endpoint is no longer participating.

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