Chapter 10. SIP Services
SIP (Session Initiation Protocol) is a protocol for creating and terminating various media stream sessions over an IP network. It is for example used for Internet telephone calls and distribution of video streams.
SIP takes care of the initiation, modification and termination of a session with one or more participants. The protocol makes it possible for the participants to agree on what media types they should share. You can find more information about SIP in appendix A, More About SIP, and in RFC 3261.
The SIP module in the 3Com VCX IP Telecommuting Module handles SIP requests for users who have registered on the Telecommuting Module itself or a machine connected to the Telecommuting Module (see also Local Registrar). The Telecommuting Module receives the request via the firewall (or, for the Standalone type, directly from the clients) and processes it. When the SIP negotiation is finished, the Telecommuting Module lets the media streams of this SIP session through. All media streams pass through the Telecommuting Module if the clients are located on different firewall interfaces.
Administration of SIP
To enable the SIP function of the Telecommuting Module, you must at least configure on the Basic Settings page.
These SIP functions are configured in the SIP Services section:
•SIP module on/off
•SIP logging
•Port range for SIP media
•Interoperability settings
•SIP timeouts
•Remote SIP Connectivity (requires a Remote SIP Connectivity Module)
Basic Settings
Here, you make basic settings for the Telecommuting Module SIP management.
SIP Module
Here, select whether the SIP module should be enabled or disabled. If you select to Disable SIP module, no other SIP settings will have any effect.
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