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Approximate price is 4000 $. More information by mail worldvoipproviders@gmail.com
VOIP Service Providers Residential
MARSHAL TELECOM
MARASHAL TELECOM
APT#1801, 4902 NORTH MAC DILL AVENUE,
TAMPA, FLORIDA 33614, UNITED STATES.
Phone : +18139900763
Email : marshaltelecom@gmail.com
SKYPE : marshaltelecom
YIM : marshaltelecom
FB : http://www.facebook.com/MarshalTel
WEB : www.marshaltel.com
Zimbabwe / FLORIDA / TAMPA, / APT#1801, 4902 NORTH MAC DILL AVENUE,
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Algo Incorporated P L
Algo Incorporated offers VoIP services - Zimbabwe DID Numbers, International DID Numbers, SIP Trunks and Related VoIP Services..
Zimbabwe / Harare / Harare / http://www.algo.co.zw
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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.
