1Jan

Cisco 7911 Sip Firmware Cisco

1 Jan 2000admin

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In Cisco Site the firmware for the 7911 to support SIP is used for upper versions of CCM 5.X, but there is no mention if the firmwares proposed are used to work with Asterisk or other SIP PBXs!! Plz i need urgent help.

Hi, I have 3 7911G Cisco phones that are unable to reset. I need to install «cmterm-7911_7906-sccp.9-1-1SR1» firmware.

Phone

I use tftpd32 and this is my setting (I tried 3 differents versions of the utility and 2 differents procedures for this): I also tried 192.168.1.108 for the computer IP but that doesn't work. Same thing for checkbox: Ping addresse before assignation And Persistant leases. Checked or not, it doesn't work.

I’ve been working on bringing some old cisco 7911G’s up to a recent sip firmware so they can be used with asterisk. Luckily the firmware is all available on the cisco site as long as you sign up for a free account. If you’re running firmware older than 8.3 you need to update to a firmware level between 8.3 and 8.5.2 before you upgrade to firmware 9.x. From the firmware 9.2 release notes: 'For all SCCP firmware upgrades from firmware release versions earlier than 8.3(3) to Version 9.2(3) or later, you must first upgrade your firmware to an intermediate Version (8.3(3) to 8.5(2)) and then upgrade to 9.2(3).' To do the upgrade you need the a tftp server and option 66 defined on your dhcp to tell the phones where to look for the files. I’m doing this with a CentOS 6 server. To force the upgrade I had to do the following: Power off the phone.

Hold down the # key. While holding #, connect an AC adaptor to the phone. The escapist 2 free.

Continue to hold # until the line buttons blink amber. Release the # key. Enter *# Once you do that the phone is wiped and it reboots in search of new firmware.

After obtaining an ip from DHCP (with option 66 pointing it to the tftp server) it will connect to the tftp server and start fetching firmware. I had a problem where it was fetching the first few files but then generating a nak error on the tftpd server: Apr 13 10:25:10 pbx in.tftpd[2732]: RRQ from 10.10.10.10 filename term11.default.loads Apr 13 10:25:10 pbx in.tftpd[2733]: RRQ from 10.10.10.10 filename Jar11sip.8-2-2ES4.sbn Apr 13 10:25:10 pbx in.tftpd[2733]: sending NAK (1, File not found) to 10.10.10.10 Apr 13 10:25:10 pbx in.tftpd[2734]: RRQ from 10.10.10.10 filename cnu11.8-2-2ES4.sbn Apr 13 10:25:11 pbx in.tftpd[2734]: tftpd: read(ack): Connection refused So it requests the first file but then dies on the Jar11sip.8-2-2ES4.sbn. After looking in the tftp folder I noticed that the file was there as expected. After some head scratching I ran strings against term11.default.loads which tells the phone what firmware files to download. # strings term11.default.loads # This file contains a list of archive image files that will be requested by the # RELEASE load version 8-2-2ES4 #HARDWARE_COMP_1 1 Jar11sip.8-2-2ES4.sbn cnu11.8-2-2ES4.sbn apps11.8-2-2ES4.sbn dsp11.8-2-2ES4.sbn cvm11sip.8-2-2ES4.sbn # ls apps11.8-2-2ES4.sbn cvm11sip.8-2-2ES4.sbn jar11sip.8-2-2ES4.sbn term06.default.loads cnu11.8-2-2ES4.sbn dsp11.8-2-2ES4.sbn SIP11.8-2-2SR3S.loads term11.default.loads Ah! Linux is case sensitive so trying to download Jar11sip.8-2-2ES4.sbn isn’t going to work if the file on the server is jar11sip.8-2-2ES4.sbn. A quick rename of the file to Jar11sip.8-2-2ES4.sbn fixed the issue and the phone did it’s firmware update correctly.

That seems like a bit of an oversight by the firmware release team at Cisco but maybe their Call Manager software runs a case insensitive tftpd.