Call Manager Name DNS Error on 7940

[gilomwebaze]

I have a Cisco 7940 phone and an asterisk PBX running on Suse Linux 8.2, I have loaded all the images on the phone with a TFTP server on the linux box, but the Call manager 1 field picks up the IP address of the linux box and after configuring IP address, the phone says defaulting CM list to TFTP, then goes into Call Manager Name DNS Error and stays like this forever. Id like to know what is causing this error, Im sooo confused here

[gogasca]

It could be good if you capture an Sniffer trace

when the IP Phone is booting to verify which files is requesting...

Since you are using Asterisk I will assume you are using SIP ( not the chan_sccp module)

As far as I remember it will request a

CTLSEP000BBED806CD.tlv

then a:

SEP000BBED806CD.cnf.xml

(where 000BBED806CD is the MAC of your IP Phone).

You can try hardcoding last file as follows...

+++++++++++++++++++++++++++++++++++++++++++++++++++++

Im using P0S3-07-3-00 load

110.10.200.2

110.10.200.2 is the IP for *

+++++++++++++++++++++++++++++++++++++++++++++++++++++

[root@server tftpboot]# cat SEP000BBED806CD.cnf.xml

2000

110.10.200.2

P0S3-07-3-00

(where 000BBED806CD is the MAC of your IP Phone).

Then follow the procedure from our page:

http://cisco.com/en/US/tech/tk652/tk701/technologies_tech_note09186a0080094584.shtml

I widely recommend you use an sniffer trace or a TFTP debug so you will see which files the IP Phone is requesting.

http://www.voip-info.org/wiki-Firmware+issues+on+7940+-+7960

Let us know.