Hello,

putting such conditions in the config file is possible, but if you have more than those listed user ids, probably is better to keep them in a database.

Anyhow, for doing the conditions in the config file, you can use the variable $rU (r-uri username) and $rd (r-uri domain) as well as $fU (From uri username) and $fd (From-uri domain) to compare with the values you want.

You can look at the core cookbook to understand the structure of the config file:

* https://www.kamailio.org/wiki/cookbooks/devel/core

And the list of variables is available at:

* https://www.kamailio.org/wiki/cookbooks/devel/pseudovariables

The default config file is also a good start point to play with Kamailio to get its basics.

Cheers, Daniel

On 05.07.19 19:37, Ronald Hartmann wrote:

Good Day List,

I am very new to Kamailio and trying to understand at 10,000 feet how it may be able to be used. I was wondering if the following Scenario would be possible and if so what modules would accomplish this aspect.  (Any URLs for further reading would be appreciated)

Scenario:

Given

1. SoftPhones will register as follows

   sip uri, user@subdomain.myvoipserver.com mailto:user@subdomain.myvoipserver.com

2. The following users are authorized to connect (this would be stored

in a config file etc):

1001,1003,1007 are valid users for apples.myvoipserver.com
<http://apples.myvoipserver.com/>

1001,2213,5817 are valid users for oranges.myvoipserver.com
<http://oranges.myvoipserver.com/>

Is it possible for Kamailio to perform the following evaluation and then take the appropriate steps:

If [domain is apples.myvoipserver.com http://apples.myvoipserver.com/ AND user portion is 1001]

then

Forward/Proxy the SIP/RTP packets to

Asterisk server responsible for registration and audio for the domain apples.myvoipserver.com http://apples.myvoipserver.com/

Else if [domain is oranges.myvoipserver.com http://oranges.myvoipserver.com/ AND user portion is 2213]

then

Forward/Proxy the SIP/RTP packets to

Asterisk server responsible for registration and audio for the domain oranges.myvoipserver.com http://oranges.myvoipserver.com/

Else

Silently Drop packets etc.

given the above evaluation rules, a user who tries to register as

1001@apples.myvoipserver.com mailto:1001@apples.myvoipserver.com

would be granted access and their SIP Packets and subsequent RTP
would be forwarded to the asterisk server at
apples.myvoipserver.com <http://apples.myvoipserver.com>, where
said server would take care of the Registration, and any
subsequent calls, subscriptions, Options etc.

1004@ apples.myvoipserver.com http://apples.myvoipserver.com

Would not match the authorized list for apples.myvoipserver.com
<http://apples.myvoipserver.com> (1001,1003,1007), therefore this
registration attempt would be silently dropped

2213@apples.myvoipserver.com mailto:2213@apples.myvoipserver.com

would be granted access and their SIP Packets and subsequent RTP
would be forwarded to the asterisk server at
oranges.myvoipserver.com <http://oranges.myvoipserver.com>, where
said server would take care of the Registration, and any
subsequent calls, subscriptions, Options etc.

Thanks for any information to assist me in understanding how this would work.

~ron

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