OK, I got it figured out. Here is the process to fix this problem in the future.
The key here on MGCP phones was to recognize that they only understand the 8.3 naming
format until a few revs up. What seemed like corruption was the Cisco phones
inability to understand bigger than 8.3 names, such as what Cisco uses for the SIP
images.
Here is the step-by-step:
1. Upgrade to a newer version of the MGCP code.
I went to: P0M3-03-0-00.bin
However this does not work out of the box,I had to copy the file to P0M30300.bin to
adhere to the 8.3 name standard.
Modify the OS79XX.TXT to say only the following:
P0M30300
This process apparently reorganizes the image memory mapping on the phone to make room
for the larger image to come.
2. Once the upgrade is complete upgrade to a newer MGCP code.
I went to : P0M3-04-4-00.bin
I again copied the file to P0M30440.bin and modified OS79XX.TXT to:
P0M30440
3. Only now am I ready to upgrade to the SIP 5.3 image.
I'm not sure if I still had to adhere to the 8.3 naming convention, I did it just to
be safe, but I am now running on 5.3 SIP.
SOme screwy things happened with my config. I got garbage on my domain name field
that I could not back space to erase. I just reset to factory to adress this issue.
Thanks for everyone's help and I hope this document is useful to someone in the future.
Babak
Rich Adamson wrote:
> Babak,
>
> I don't have a clue where these came from. ;)
>
> Rich
>
> > Would someone have a 2.2 SIP that I could try to keep in accordance
> > to Rich's methodology?
> >
> > Babak
>
>
--
Babak Pasdar
Founder/CTO
IGX Global
389 Main St.
Hackensack, NJ 07601
www.igxglobal.com
(201) 498-0555 ext. 2205
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