VoiceFlex United Kingdom

SIP is the latest technology allowing voice call to be made over the internet. VoiceFlex uses SIP to provide low cost, ISDN replacement lines that provides the best possible call quality, inexpensively, sometimes at no cost, with the flexibility that come

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General office

VoiceFlex
9 Warwick Street
London
,W1B 5JL
United Kingdom

Phone: +44 20 7440 1800
Site: http://www.voiceflex.com

Contact Person

Paul Taylor / Sales Director
Phone: +44 20 7440 1811

Internet Telephony Service Provider
Voip Termination ISP

Call Relay VoIP Solutions
Call Routing VoIP Solutions
Consultancy Services
Installation and Support Services
IP devices
Partnering for Origination and Termination
PC to Phone
Phone To PC
Phone To Phone
Project Mangement Services
SIP Softswitch & CPE
SIP VoIP Gateway
System Integration
Termination

2N
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CPM
D-TAC
Dialogic Based
DSG
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Mera
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Mosa
NACT
net.com
Netvox
Nicstel
Nuera
QiiQ
Quintum
Senao
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Telica
UOL
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vFone
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Welltech
Yoda

Proprietary

Airbank Limited

Yackie Telecom UK

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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