I have several Polycom IP550 phones running UC 4.0.3, connected to Asterisk 1.8.
Setting forwarding for “Always” works as expected; the phone issues a 302 Moved Temporarily, and Asterisk shifts the call to the new location.
Setting forwarding to “No Answer” means a 302 never gets issued. It just rings and eventually goes to voicemail. Watching with Wireshark, I never see a 302 SIP message issued. I can’t find anything in the phone settings that look like it would disable this.
Anyone else with a Polycom set that sees this, or does not see this and has “forward no answer” working?
Justin Sherrill – American Rock Salt P: 585-991-6825 F: 585-991-6925 C: 585-298-6826