[Asterisk-Users] Re: Again: 7920 Cisco IP Phone Skinny & SIP

[Brian Buhrow]

	Hello.  The Cisco 7905 and 7920 phones are basically the same phone,
with the 7920 having a built-in ethernet switch.  Sip and Skinny images
are available for these phones on the Cisco web site if you hav a CCO
account.  I believe you select which image you want to run at boot time,
with the OS7920.TXT file.  (If you're familiar with the way this works with
the Cisco 7940 and 7960 phones, you'll understand the procedure for getting
these phones to boot the desired image.)  Essentially, you put the version
number of the image in the OS7920.TXT file, and use the S or M parameter in
that file to determine whether you want an mgcp/skinny image or a Sip
image.
	If you load a sip image into the phone, it should work quite wel with
Asterisk.
	If you want to continue debugging and fixing the skinny code in
Asterisk, then load the mgcp/skinny image into the phone.

Note: the software can be found on the Cisco site under the Software Center
link on the CCO registered user page.

Hope that helps.
-Brian
Message: 5
Date: Tue, 13 Jan 2004 14:49:36 +0100
From: Jan Czmok <czmok at gatel.net>
To: asterisk-users at lists.digium.com, asterisk-dev at lists.digium.com
Subject: [Asterisk-Users] Again: 7920 Cisco IP Phone Skinny & SIP
Reply-To: asterisk-users at lists.digium.com

hi!

i had some good news regarding the cisco 7920 and the internetworking
with asterisk (and possibly SIP ?).

Status: chan_sccp.so not coredumping anymore :-)
	Phone contantly in reboot loop [see below] :-(

Reboot Loop means:
------------------
 Phone auth's with AP
 Phone gets IP from DHCP & TFTP Server
 Phone loads OS7920.TXT
 Phone loads SEP<macaddr>.CNF.XML
 Phone loads xmlDefault.conf.xml
 Phone registeres to Asterisk
 Phone gets registered
 Phone gets Info/Dial/Stuff from Asterisk
 Phone gets Line Info
 SKINNY LineStatReqMessage
 SKINNY LineStatMessage
 SKINNY LineStatReqMessage
 SKINNY LineStatMessage
 SKINNY LineStatReqMessage
 SKINNY LineStatMessage
 SKINNY LineStatReqMessage
 SKINNY LineStatMessage
 SKINNY LineStatReqMessage
 SKINNY LineStatMessage
 SKINNY SoftKeySetReqMessage
 SKINNY SoftKeySetResMessage
 SKINNY OffHookMessage
 SKINNY SetSpeakerModeMessage
 SKINNY OnHookMessage
 SKINNY DisplayPromptStatusMessage
 SKINNY DisplayPromptStatusMessage
 SKINNY DisplayPromptStatusMessage

But if you look at the Support of the 7920 in Callmanager Express, you
get a file named "cmterm_7920.3.3-01-02-021.bin" so i was investigating
further. so i wrote "cmterm_7920.3.3-01-02-021" in OS7920.TXT and
suddenly the Cisco 7920 shows "Upgrading Firmware" :-)
Unfortunately for some reason it did not accept the firmware, but it
still tries to load it. 

Some additional info:
---------------------
The 7920 is requesting cmterm_7920.3.3-01-02-021^J.bin
(so with an Ctrl-J in it), so you have to rename the file.

I also got the information from documents that the 7920 is running in
7960 emulation mode, so draw your own conclusions in regards of SIP
possiblity :-)

I tried to use some 7960 images, but did not succeed :-(

Would appreciate some help in this issue :-)

--jan

-- 
Jan Czmok, Network Engineering & Support, Global Access Telecomm, Inc.
Ph.: +49 69 299896-35 - fax: +49 69 299896-40 - sip:13129*522 at inoc-dba.pch.net