Specialty Answering Service United States

Installs VoIP systems to business clients in PA, NJ, DE, and NY.

Specialty Answering Service is a call center service company based in Pennsylvania. In addition to call center services, we offer hosted virtual PBX as well as offer VoIP networking and installation services to our customers in Pennsylvania, New Jersey, New York, and Delaware.

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General office

Specialty Answering Service
1530 Locust Street
Philadelphia
PA ,19102
United States

Phone: +1 888 532 4794
Site: http://www.specialtyansweringservice.net

Contact Person

Nicolas DAlleva / VoIP Marketing
Phone: 888 532 4794 x200

Hardware
Hosted PBX Service Provider
Internet Fax Service Provider
Marketing Services

Call Center services
Hosted PBX
Installation and Support Services
Marketing Services
Virtual PBX

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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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