Support For Transport Layer Protocols - HP MSR SERIES Configuration Manual

Hide thumbs Also See for MSR SERIES:

Table of Contents

Figure 658 Call redirection procedure for UAs

302 Moved Temporarily

This is a common application. Fundamentally, a redirect server can respond with the address of a proxy

server as well. The subsequent call procedures are the same as the call procedures involving proxy

Support for transport layer protocols

As an application layer protocol, SIP supports three transport layer protocols, including:

UDP—UDP is a connectionless protocol and does not provide reliability. Therefore, SIP connections

established over UDP are unreliable.

TCP—Ensures transmission reliability for SIP messages. TCP provides connection-oriented and

reliable transmission for SIP-based VoIP communications. Using TCP, SIP need not consider packet

loss and retransmission issues.

Transport layer security (TLS)—Ensures transmission security for SIP messages. For more information,

The above three transport layer protocols have their own benefits, and allow you to select a protocol

based on your network environment. The system does not support transport layer protocol switchover

during communication.

SIP security

This section provides information on signaling encryption, media flow encryption, and TLS-SRTP

combinations.

Redirect Server

encryption."

Show Quick Links

Table of Contents