Linksys SPA922 Cisco SPA9000 Voice System Administration Guide - Page 190

Advanced Topics in SPA9000 Administration Remote Provisioning Features A Client Registration All client stations served by the SPA9000 must register to the SPA9000, which does not allow a station to make calls unless it is registered. If the client station is configured with Station Name, it should include a P-STATION-NAME header in the REGISTER request. Following is an example where User-A has been assigned a primary extension of 5031. REGISTER sip:192.168.0.1:6060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.4:5060;branch=z9hG4bK-8865c41e From: "User-A" ;tag=a76a3e1dfc6045cdo0 To: "User-A" Call-ID: [email protected] CSeq: 1 REGISTER Max-Forwards: 70 Contact: "User-A" ;expires=3600 User-Agent: Sipura/SPA841-3.1.4(a0714sec) P-Station-Name: User-A Content-Length: 0 Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER, SUBSCRIBE Allow-Events: dialog In this example, User-A shares a line appearance with User-B, whose primary extension is 5041. Extension 2 on the User-A station must then be set up the same way as Extension 1 (User-A primary extension), but with the parameter set to 5041. The User-A station then performs a third-party registration for Extension 2, as shown below. Note that the TO header parameter is the User-B primary extension. REGISTER sip:192.168.0.1:6060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.4:5061;branch=z9hG4bK-25c8108c From: "User-A" ;tag=3c43d094a9424bo1 To: "User-A" Call-ID: [email protected] CSeq: 1 REGISTER Max-Forwards: 70 Contact: "User-A" ;expires=3600 User-Agent: Sipura/SPA841-3.1.4(a0714sec) P-Station-Name: 000e08daf417 Content-Length: 0 Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER, SUBSCRIBE Allow-Events: dialog SPA9000 Voice System Administration Guide 188