SIP
The Session Initiation Protocol (SIP) network protocol sets up a communication session between two or more subscribers. SIP is only used to negotiate the communication conditions. Other protocols such as RTP are responsible for actual data transfer.
Session Timer, Session Timeout and Protocol type settings must be made, for problem-free communication.
You can select protocol type UDP or TCP.
•UDP: (the User Datagram Protocol) is used to send data packet over connectionless non-secure communication lines. UDP itself does not verify whether data has been transmitted successfully. When a UDP packet is sent, the sender cannot assume that the packet will definitely arrive at the recipient. This particular protocol only needs a small amount of additional information, which results in a better data throughput rate in a well-functioning network such as a LAN. UDP is used, e.g., for the DNS (Domain Name Server).
•TCP: TCP (Transmission Control Protocol) is a transport protocol that segments data into packets up to a specified size and reliably sends these individual data packets to the recipient address, in the correct sequence. In this process, every data packet sent must be resent until it has been confirmed as arrived. To ensure this happens, a large amount of information is sent along with the actual payload data. Most Internet services are implemented with TCP, e.g., HTTP (WWW), SMTP/POPS (e-mail), etc.
Configuration
Web interface:
•Identities > Options for experts
Details about the settings are in Options for expertsPhone:
•Settings > Identities > SIP
Details about the settings are in SIPProvisioning:
You will find general details about provisioning and how to provision this function in Auerswald DokuWiki