DFM Iran

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General office

DFM
shahrakeh jandarmery, etaaty Aev,
Tehran
Tehran ,13145
Iran

Phone: +98 21 8825 180
Phone: +98 935 541 1437

SIP Billing
Voip consulting

Phone To Phone
SIP Softswitch & CPE

Audiocodes
Cisco Systems
Dialogic Based

INPERTEL
Java Based own system
K2 Power Bill
MIND
NACT - UNIX Platform
Our Own ASP Solution

Parsvoip

Persia Telecom

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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Naytel LTD

We believes that VoIP technology is the heart of every successful business Naytel Telecom helps VoIP Businesses to grow up by extending their footprint by using Terminium networks & connections in the Middle-East region.