[asterisk-users] Help: How to configure SIP domain on SPA942

Philip Prindeville philipp_subx at redfish-solutions.com
Mon Nov 19 16:57:10 CST 2007

Johansson Olle E wrote:
> 19 nov 2007 kl. 04.53 skrev Philip Prindeville:
>> I'm using a bunch of SPA942's, and I'm trying to provision them mostly
>> by DHCP (and what I can't set that way, I try to provision via HTTP
>> interface into the phone).
>> I changed the domain in my AstLinux config from "astlinux" to  
>> redfish-solutions.com, and set
>> that in my sip.conf file as well:
>> context=incoming
>> canreinvite=no
>> realm=redfish-solutions.com
>> domain=redfish-solutions.com,incoming-redfish
>> tos=184
>> disallow=all
>> allow=ulaw
>> allow=gsm
>> localnet=
>> externip=X.X.X.X
>> (Footnote:  do I need a default context?  I'd rather not having  
>> one... I'd rather specify where
>> my calls go explicitly...)
>> However, my phones don't seem to be registering with any (symbolic)  
>> domain...  just the IP address
>> of their DHCP or TFTP server (can't tell which, since it's the same  
>> box).
>> <-- SIP read from
>> REGISTER sip: SIP/2.0
> It surprises me that a LInksys converts the domain to an IP address,  
> that's broken.
> If you add autodomain=yes the IP address will be accepted to, or add  
> it as a domain.
> The problem with these devices is that you don't know which domain  
> they where
> configured for, since something is translating the domain to an IP  
> address. With
> that logic, you can't separate and host multiple domains in the same  
> SIP server.
> /O

I don't think that's what's happening.

I think it isn't having a domain (name) being explicitly set, so it's 
implicitly using the IP address
of the TFTP or DHCP server instead.


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