[asterisk-dev] Linksys SPA962 losing registration

[Jeff LaCoursiere]

Hi,

Upgraded a location from 1.4.18 to 1.4.26.2 a few days ago, and 
immediately had issues with Linksys SPA962 phones (firmware 6.1.3a) losing 
their registration every 30 seconds.

A SIP trace shows that they register, send six or seven NOTIFY keep-alive 
messages with what appears to be exponential backoff timing between them, 
then send a REGISTER request again.

It would seem that the phones expect a response to the NOTIFY keep-alives. 
Has this changed between 1.4.18 and 1.4.26.2?  I have been digging in 
chan_sip.c but I have to admit I am fairly lost.  Would be happy to try 
and hack in a response if someone might point me to the routine that 
receives the NOTIFY message and decides what to do with it.

Would also welcome any theory if mine is off track!

There are about 300 of these phones in play.  Some of them simply blink 
"orange" for a moment until the re-registration succeeds.  Some of them
lose registration entirely until reboot (don't have a trace of that yet).

Here is a summary of the trace:

----------------------------------------------------------------------------

TIME            Linksys to asterisk                  Asterisk to Linksys

12:36:51        REGISTER REQUEST 3705759a
12:36:51                                             100 TRYING
12:36:51                                             [stale nonce log]
12:36:51                                             401 UNAUTHORIZED
12:36:51                                             [use nonce 50a821de]

12:36:51        REGISTER REQUEST 50a821de
12:36:51                                             100 TRYING
12:36:51                                             102 OPTIONS
12:36:51                                             200 OK
12:36:51        200 OK

12:36:53                                             NOTIFY Messages-Waiting no
12:36:53        200 OK

12:37:01        NOTIFY Keep-alive

12:37:02        NOTIFY Keep-alive

12:37:03        NOTIFY Keep-alive

12:37:05        NOTIFY Keep-alive

12:37:09        NOTIFY Keep-alive

12:37:13        NOTIFY Keep-alive

12:37:17        NOTIFY Keep-alive

12:37:17        REGISTER REQUEST 50a821de
12:37:17                                             100 TRYING
12:37:17                                             [stale nonce log]
12:37:17                                             401 UNAUTHORIZED
12:37:17                                             [use nonce 6e7159fe]

12:37:17        REGISTER REQUEST 6e7159fe
12:37:17                                             100 TRYING
12:37:17                                             102 OPTIONS
12:37:17                                             200 OK
12:37:17        200 OK

12:37:26                                             NOTIFY Messages-Waiting no
12:37:26        200 OK

12:37:27        NOTIFY Keep-alive

12:37:28        NOTIFY Keep-alive

12:37:29        NOTIFY Keep-alive

12:37:31        NOTIFY Keep-alive

12:37:35        NOTIFY Keep-alive

12:37:39        NOTIFY Keep-alive

12:37:43        NOTIFY Keep-alive

12:37:43        REGISTER REQUEST 6e7159fe
12:37:43                                             100 TRYING
12:37:43                                             [stale nonce log]
12:37:43                                             401 UNAUTHORIZED
12:37:43                                             [use nonce 657eea74]

12:37:43        REGISTER REQUEST 657eea74
12:37:43                                             100 TRYING
12:37:43                                             102 OPTIONS
12:37:43                                             200 OK
12:37:43        200 OK

12:37:48                                             NOTIFY Messages-Waiting no

----------------------------------------------------------------------------

Cheers,

j