|Summary:||ASTERISK-21664: Asterisk terminates calls if Session-Expires isn't present on INVITE|
|Reporter:||Alec Davis (alecdavis)||Labels:|
|Date Opened:||2013-04-22 05:58:42||Date Closed:||2013-05-02 02:31:38|
|Environment:||SVN-branch-1.8-r385916M||Attachments:||( 0) bug21664.diff.txt|
( 1) session_expired-1.8_sip_debug.txt
|Description:||RFC 4028 Section 7.2
"UACs MUST be prepared to receive a Session-Expires header field in a
response, even if none were present in the request."
With phone GXP1200 Session-Expires = 180
Asterisk Session-Expires = 1800
Outbound sip call will last 17 Minutes and 27 Seconds
This is because asterisk now sends the 'Session-Expires: 1800' in the SIP OK 200 response since ASTERISK-20787 when 'Supported: timer' header is present.
After 900 seconds, asterisk refreshes with an INVITE, but the phone's response has 'Session-Expires: 180' in the SIP OK 200 response.
Asterisk currently ignores this request for 180 second refreshes.
So after another 180 seconds, the phone sends a BYE, with "SESSION EXPIRED" on the display.
1048 seconds = 17m28s = 1800/2 seconds + 180 seconds - 32seconds(recommended before expiration see RFC4028 section 10)
|Comments:||By: Alec Davis (alecdavis) 2013-04-22 06:01:26.226-0500|
By: Alec Davis (alecdavis) 2013-04-22 06:27:39.848-0500
attached 'session expired-1.8 sip debug.txt'