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Voice Feature Guide 01

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SIP over TCP

SIP over TCP

Some carriers require the TCP-based SIP signaling transmission, which implements the packetization of the SIP packet (the SIP packet is large in size) and enhances the transmission reliability through TCP.

As shown in Figure 1-165, the IP protocol is used at the network layer, TCP the transport layer, and SIP the application layer.

Figure 1-165 Protocol architecture of SIP over TCP

Updated: 2019-02-22

Document ID: EDOC1100067358

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