[Serusers] Notes on converting a Cisco CM phone for SIP
Atle Samuelsen
clona at camaro.no
Tue Jan 25 07:48:50 CET 2005
Hey, what's supposed to be in the SEP00097CAC5981.cnf.xml. file? I had
some problems with POS3-07.. a few weeks ago, that the loader did'nt
want to run the phone as it should,and was very very noughty with me.
-Atle
* Steve Blair <blairs at isc.upenn.edu> [050125 00:32]:
>
> Nice work. The conversion can sometimes be daunting. Let me add a
> few items if I may. Phones that I've "converted" seem to want to
> load SIP image P0S30202 first. After loading this image other SIP images
> load in a straightforward fashion. This requirement may be based on the
> phone's firmware but the phones I'm using seem to want this release first.
>
> When going from SIP image P0S3-06-3-00 to P0S3-07-0-00 the
> loader process changes. The new loader wants a phone specific
> file with a naming convention like SEP00097CAC5981.cnf.xml. Yes
> it is an xml file. This file replaces the OS79XX.TXT as of version 7.
>
> The absence of this xml file caused my phone to go completely
> brain dead in mid-boot.
>
> -Steve
>
> Niall O'Reilly wrote:
>
> >FWIW. I hope this may save someone some time and effort.
> >
> >Cisco provides documentation on how to convert a Cisco model 79XX phone
> >from a CM configuration to a SIP configuration.
> >
> >I've recently converted two phones. With the first one, everything went
> >deceptively easily. As I discovered later, this was because my TFTP
> >server was the same system which had answered the DHCP request from the
> >phone. This was accidental, as the LAN where the phone was connected
> >was served by two DHCP servers: one on the same LAN, the other further
> >away. The local one responded more quickly to the DHCP request, and
> >happened also to be the relevant TFTP server.
> >
> >For the second phone, on a different LAN, a suitable local server was
> >found which could provide the TFTP service. The DHCP servers, however,
> >were on remote LANs. The following configuration statements were used
> >with ISC dhcpd to point the phone at the local TFTP service.
> >
> > # Top of file, among global configuration statements
> > # Define an option called 'option-150'
> >
> > option option-150 code 150 = ip-address;
> >
> > # This host is the 'first phone' mentioned above
> >
> > host blower {
> > hardware ethernet 00:0f:23:00:13:3f;
> > fixed-address 192.168.2.108;
> > }
> >
> > # This host is the 'second phone' mentioned above
> >
> > host squawk {
> > hardware ethernet 00:11:5c:93:ab:69;
> > fixed-address 192.168.150.33;
> > option tftp-server-name "local-server.example.com";
> > server-name "local-server.example.com";
> > next-server local-server.example.com;
> > option option-150 local-server.example.com;
> > }
> >
> >This section of the configuration file was developed incrementally
> >until the phone loaded its SIP configuration. The 'server-name'
> >and 'next-server' statements probably have no useful effect. It
> >was simply convenient to leave them in place rather than to edit
> >the configuration again.
> >
> >The 'option tftp-server-name' statement is needed once the phone
> >has been configured for SIP, as the SIP firmware (?) uses option
> >66, which is set by this command, to identify the TFTP server.
> >
> >The 'option option-150' statement is needed before the phone has
> >been configued for SIP, as the CM firmware uses option 150 for
> >the same purpose.
> >
> >Although the Cisco document mentions option 66 as specifying the
> >_address_ of the TFTP server, Droms' and Lemon's book describes
> >this option as specifying the _name_ of the server; this is what
> >the ISC server expects.
> >
> >Bear in mind that domain names to be passed as names in DHCP options
> >are specified to the ISC server as quoted strings; in contrast,
> >domain names to be passed as addresses in DHCP options are specified
> >without quotes.
> >
> >Web searches for 'converting call manager phone sip' and 'droms lemon'
> >will probably find the Cisco document and book mentioned above.
> >
> >Best regards,
> >
> >Niall O'Reilly
> >
> >PGP key ID: AE995ED9 (see www.pgp.net)
> >Fingerprint: 23DC C6DE 8874 2432 2BE0 3905 7987 E48D AE99 5ED9
> >
> >_______________________________________________
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>
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