asterisk users - Nov 2008 - Windows Mobile 6 SIP client: Remote host can't match request NOTIFY to call

I'm trying to get my Windows Mobile 6 phone working as an asterisk client.
Overall things are working well. However, I regularly get the following
message:

 

[Nov 27 21:57:28] WARNING[4507]: chan_sip.c:12892 handle_response: Remote
host can't match request NOTIFY to call
'67aa8e223479055656161bf17ebb77d5 at 172.31.253.4'. Giving up.

Have you snniffed the packages? It seems to be some kind of difrerence  
on the notify, try to sniff a packet ok and then one with error

Enviado desde mi iPhone

El 28/11/2008, a las 01:01 a.m., OCG Technical Support  
<support at ocg.ca> escribi?:
> I?m trying to get my Windows Mobile 6 phone working as an asterisk c 
> lient.  Overall things are working well. However, I regularly get th 
> e following message:
>
>
>
> [Nov 27 21:57:28] WARNING[4507]: chan_sip.c:12892 handle_response:  
> Remote host can't match request NOTIFY to call
'67aa8e223479055656161bf17ebb77d5 at 172.31.253.4
> '. Giving up.
>
>
>
> From what I?ve read, the client doesn?t subscribe to MWI but gets  
> a notify event ? which it rejects.  The voicemail notifications ARE  
> working on the device.
>
>
>
> Any way to get rid of this message (while keeping the MWI on the  
> phone)?
>
> _______________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users