[Asterisk-Users] MWI indicator on SNOM200 doesn't disappear

[Olle E. Johansson]

Geert Nijpels wrote:
> Ian White wrote:
> 
>>
>> On recent releases of the snom200 firmware, the MWI indicator will 
>> turn on, but won't turn off when the message has been checked. It 
>> works on firmware 2.03o, but not in 2.04g or newer. I filed a bug 
>> report with snom, but they're claiming it is an asterisk issue and 
>> that it should have been resolved. They suggested that I ask on the list.
>>
>> "Anyway, Asterisk had a bug where it didn't send the NOTIFY correctly to
>> turn off the MWI.  The message doesn't contain the line so the phone
>> doesn't know which line to apply the messages to.
>>
>> Basically the NOTIFY message should contain something like the
>> following:
>> NOTIFY sip:dephone at 209.232.233.232;line=34n34jed SIP/2.0
>>
>> There was a bugfix for this in Asterisk for this problem, do you have
>> that applied?"
>>
>> I am running the current CVS version, and don't see anything in the 
>> code that looks like this has been touched, and I haven't seen 
>> reference to it on this list. They are right in that the line 
>> information isn't being sent, looking at the SIP debugs on both ends. 
>> Anybody have ideas?
>>
>> Ian
>>
> This is a problem I have been digging into a bit. In my case asterisk 
> did not send out the NOTIFY with the header Content-Type: 
> "application/simple-message-summary", but with "Content-Type: 
> text/plain", so the NOTIFY is treated as a txt message. In result, when 
> I pressed the MWI button, I saw the text from asterisk stating the 
> amount of messages I have. I changed it to work, and now asterisk calls 
> the extension the message is sent from (asterisk at sip-server). After 
> calling this the MWI indication disappears, I'm not sure if it also 
> disappears after calling from another phone.
> 
> I'm using chan_sip2 and I changed some stuff, so I'm not sure if this is 
> also a problem with standard chan_sip (the txt vs vm issue).

Chan_sip2 handles Contact: differently than chan_sip and works better with Snom phones.
It's actually where the whole chan_sip2 project started... :-)
/O