[asterisk-users] Re: Cisco 7970 MWI not working (Was: Problem with Cisco7970 SIP load / call transfer)

[Michael J. Tubby G8TIC]

Juha,

I am running the same version of Cisco 7970 SIP firmware and having the same 
problem with periodic 400 "Bad Request" responses from it when Asterisk 
sends MWI updates for a voicemail box...

    -- Got SIP response 400 "Bad Request" back from 192.168.144.187
    -- Got SIP response 400 "Bad Request" back from 192.168.144.187
    -- Got SIP response 400 "Bad Request" back from 192.168.144.187
    -- Got SIP response 400 "Bad Request" back from 192.168.144.187
    -- Got SIP response 400 "Bad Request" back from 192.168.144.187
    -- Got SIP response 400 "Bad Request" back from 192.168.144.187
    -- Got SIP response 400 "Bad Request" back from 192.168.144.187
    -- Got SIP response 400 "Bad Request" back from 192.168.144.187
    -- Got SIP response 400 "Bad Request" back from 192.168.144.187
    -- Got SIP response 400 "Bad Request" back from 192.168.144.187
    -- Got SIP response 400 "Bad Request" back from 192.168.144.187

so, Cisco have changed what they are expecing in the SIP headers for the MWI 
to work...?

My hunch is that they are wanting an @<ipaddress of server> somewhere in the 
notification as this would be consistent with the other changes that they 
have made for resillience when the phone talks to more than one CallManager 
5.x server in SIP mode -- hence why people are commenting on the @<ip 
address> turning up in caller id.  Actually it makes sense if there are to 
be multiple servers supporting a HA phone system because when you have a 
missed call and hit the "call them back" button you probably do need to do 
it in the context of the call you missed (ie. via the server that Invited 
you).

That being said the MWI not working is a pain!  Does anyone on the list have 
the ability to capture working SIP MWI notifications from a CallManager 5.x 
talking to a Cisco 7960 phone running SIP 8.0.2 using Ethereal (or some 
other packet sniffing tool) so we can see what the SIP looked like and fix 
(patch) Asterisk???


Regards



Mike



----- Original Message ----- 
From: "Juha Suhonen" <juhas at juhas.net>
To: <asterisk-users at lists.digium.com>
Sent: Wednesday, August 02, 2006 8:27 AM
Subject: [asterisk-users] Problem with Cisco7970 SIP load / call transfer


> Hi!
>
>
> I'm having an interesting problem with Cisco7970 SIP load (8.0(2)SR1) - 
> the phone seems to work otherwise fine, but I can't do an assisted 
> transfer (and the 7970 phone also doesn't seem to support the BlindXFer 
> option that previous models have had). Phones are connected to Asterisk 
> 1.2.10.
>
>
> What happens is this: User a calls to my phone. I press "Transfer" on the 
> phone, I then place another call to another extension. When this new call 
> is connected, pressing the "Transfer" -button again sends 2 SIP INVITE 
> messages (and asterisk acks them with seemingly appropriate "OK" 
> messages). But.. After getting the acks, phone just says "Unable to 
> complete transfer" and both current calls are placed on hold.
>
> Has anybody else seen this? Any ideas on how to fix? The same 
> configuration works with Cisco 7960 (using some pretty ancient SIP load). 
> I've also thought about upgrading the phone to 8.0(3) release of the SIP 
> load, but atleast voip-info.org wiki states it as a "total disaster" - can 
> anybody confirm if it's really a disaster?
>
>
> As a related note, I'm also not seeing MWI with the 7970 phone - when 
> Asterisk sends the MWI status message to phone, Asterisk immediatetly 
> barfs out -- Got SIP response 400 "Bad Request" back from xxx. Does 
> anybody know if this is a bug on the phone and maybe fixed on a later 
> image? (and is there any workaround I can enable on asterisk to overcome 
> this)
>
>
> Also, a small UI thing - has anybody found a way to get the # -key to 
> directly dial the number which has been inputted and mimic the behaviour 
> 7960s had? Our users are accustomed to keying in 123# instead of pressing 
> 123 + "dial"..
>
>
>
>
>  -- juhas
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