[asterisk-users] Attempting to get BLF working with linphone

[Joshua C. Colp]

On Wed, Mar 25, 2020 at 11:07 AM John Hughes <john at calva.com> wrote:

>
> On 23/03/2020 18:51, Joshua C. Colp wrote:
>
> On Mon, Mar 23, 2020 at 2:45 PM John Hughes <john at calva.com> wrote:
>
>>
>> Why is asterisk giving an error 500? I can find no reason, there is
>> nothing in any log.
>>
>
> The sequence number is from the past. The first SUBSCRIBE is sequence
> number 22 (check the CSeq header). The second is 20. The third is 21. It
> appears as though this is from the past, so it receives a 500.
>
> Ok, I've had some back and forth with the linphone developers and they
> contend that although the sequence number on the 2nd and 3rd SUBSCRIBE
> messages start a new sequence this is legal as it is a new conversation --
> the "tag=" on the From has changed.
>
> Are they right?  (Notice that the tag= from asterisk also changes).
>

It's possible. If I recall chan_sip is extremely forgiving with matching
things, so it may not have taken that into account.

-- 
Joshua C. Colp
Asterisk Technical Lead
Sangoma Technologies
Check us out at www.sangoma.com and www.asterisk.org
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