[asterisk-users] BLF with Aastra

[Matt]

Well that was it... it is no longer timing out.

On 8/14/07, James FitzGibbon <james.fitzgibbon at gmail.com> wrote:
> On 8/14/07, Matt <mhoppes at gmail.com> wrote:
> > I have a 536i expansion module attached to a 57i-CT.   The BLF lights
> > on the 536i will light up and work fine for a while... however after a
> > bit they seem to loose their ability to see if someone is on a phone.
> > They still work to dial, if I try to dial, however, they don't light
> > up when someone makes a call, or if their phone rings.     If I reboot
> > the phone, the lights start working again (for a while).
> >
>
> Does 'sip show subscriptions' indicate that the 57i is still subscribed to
> the extension for updates?  If not, you might have to do a test with 'sip
> debug peer aastraname' to confirm that the subscription is being made
> properly on phone startup and not being removed by the phone in response to
> some state change.
>
> A quick glance at chan_sip.c indicates that if a user agent tries to
> subscribe with an expiry time greater than 'maxexpiry' from sip.conf
> (default 3600 seconds), the subscription expiry in Asterisk will be silently
> changed to whatever the allowed maximum is.  So if the Aastra is trying to
> subscribe for say 3 hours and Asterisk doesn't allow subscriptions greater
> than one hour, then notify messages will stop being sent after one hour
> until the Aatra re-subscribes.  I haven't delved in very deep, so I can't
> tell if the response to the UA indicates the actual expiry Asterisk used,
> but even so you'd have to be certain that the Aastra respects an expiry in
> the response that differs from what it asked for.
>
> When you're doing the debug (hopefully on a quiet system), watch the phone
> boot, then use 'sip show subscriptions' to get the call-id of the
> subscription.  Then watch for console messages indicating that the call has
> been destroyed (which should come at the 1 hour mark or whatever time the
> Aastra used for it's subscription length.
>
> --
> j.
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