Info from Cisco:
Check out:
http://www-vnt.cisco.com/SPUniv/SIP/sip_phone_faq.htm#UPGRADE
http://www.cisco.com/en/US/partner/tech/tk652/tk701/technologies_tech_note09186a0080094584.shtml
http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/sip7960/sipadm30/maintain.htm#1065500
(1) Short problem description:
Documentation on how to load SIP image on phone with skinny software
(2) Longer problem description (what happens):
If the phone is loaded with the Cisco
Skinny code, then there is a small problem with loading SIP images that
are over 4K in size. This is caused by the Skinny code having a 4K tftp
buffer. So if you look at the latest images P0S3-04-1-00.bin is 449K in
size, if you try and load this file the tftpboot will hang when
the
buffer is full. At present there is NO error message and you have to
look
at a sniffer trace to see the error message.
(3) Possible solution (what did you expect):
Information in the documentation on how to do this.
(5) Workaround used currently (if applicable):
A simple procedure is.....
- Download the SIP image P0S30203.bin
and the rest of the files that are needed
(OS79XX.txt/SIPDefault.cnf/SIPDefaultGeneric.cnf/ringer1.pcm/ringer2.pcm/dialplan.xml/RINGLIST.DAT)
- Change OS79XX.TXT file to contain
P0S30203
- Power cycle the phone so that it
will load the new image
Once the phone is loaded with P0S30203
you can then download SIP image P0S3-04-3-00.bin into the TFTPBOOT
directory
and either change the SIPmacaddress.cnf file to load this image, or
change
OS79XX.TXT file to reflect this image.
Do NOT rename this file, it should
appear as P0S3-04-3-00.bin otherwise the phone will continuously reload.
(7) Would you classify this as:
(C) Bug/malfunction: Ok to
deploy with workaround (see 5)
(9) Contact information
Ken Crozier" <kcrozier@SPAM.cisco.com>
(11) Report:
http://wwwin-cons.cisco.com/~kcrozier/sip.html