[cisco-voip] 7965G delays registering on SCCP v9 firmware

[Aaron Riemer]

Hi Wes,

 

The phones were hard set to SCCP45.9-1-1SR1S and the load was already
installed prior to connecting them at the remote site. I.e. they were
upgraded at our metro site and sent to remote location.

 

There was no indication on the phones that they were upgrading when
connected at the remote site. They would just be 'stuck' (frozen screen) for
up to 20 minutes until finally they would register.

 

We tried multiple SCCPv9 firmware with the same results. In the end we had
to downgrade them all to SCCPv8 to resolve the problem.

 

I am going to get this up in a lab environment to test when I get a spare
moment.

 

I will update the list.

 

Cheers,

 

Aaron.

 

 

 

From: Wes Sisk [mailto:wsisk at cisco.com] 
Sent: Monday, 14 May 2012 9:42 PM
To: Aaron Riemer
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] 7965G delays registering on SCCP v9 firmware

 

10-20 minutes sounds like the time to download the larger loads required by
the 79x2 and 79x5 loads. When you reset the phones they re-attempt TFTP. The
phones will spin on TFTP transfer for 10-20 minutes, then give up most
likely on a failure, and register using the old phone load.

 

If you check one of the phones that experiences this issue - either in RTMT
or in the phone webpage, has it successfully upgraded to the 9.x release or
is it still running the 8.x release such that they would attempt upgrade on
next reset.

 

I was not under the impression that 79x2 and 79x5 model phones had http
transfer of phone loads yet.  That would be a good point of clarification as
to how the phones are attempting upgrade and if any problems occur in that
attempt. Usually detailed TFTP traces are adequate.

 

https://supportforums.cisco.com/docs/DOC-16943

 

Regards,

Wes

 

On May 13, 2012, at 2:00 AM, Aaron Riemer wrote:

 

Hey guys,

 

We are gradually upgrading our fleet of 7965G's to SCCP v9 software from v8.

 

We have found an issue at remote sites (higher latency) where phones (with
any 9.x firmware) are taking upward of 10-20 minutes to register! This delay
seems to only occur when a full power off / power on occurs.

 

Downgrade the phones back to v8.x and whola! No problem.

 

We are going to try and simulate this in the lab with a WAN sim and then
probably get TAC involved. I suspect it has something to do with the extra
latency involved but as mentioned we have had no trouble with v8.x software.

 

Has anyone come across this problem? It seems a bit oddball I know.

 

Any hints or suggestions are most welcome.

 

Thanks,

 

Aaron.

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