[SR-Users] Using a single virtual domain in a multi-domain setup

[Rhys Hanrahan]

Hi All,

I am trying to setup Kamailio to allow me to have multiple different
domains (and IPs) treated as one. I am using the domain module for this. As
an example I have:

* A handset registered to Kamailio by IP address.
* A SIP trunk between Asterisk and Kamilio using an FQDN that uses SRV
records for redundancy on Asterisk's side.

I have added all domains and IPs under the same "domain identifier". It
seems the "old" domain module now uid_domain had this capability of a
single virtual domain, but is this possible with the more current domain.so
module? From what I've said the uid_* modules older modules from the SIP
Router project, and should be replaced by more recent Kamailio modules?

- https://www.kamailio.org/docs/modules/5.0.x/modules/uid_domain.html
VS.
- https://kamailio.org/docs/modules/5.1.x/modules/domain.html


MariaDB [kamailio]> select * from domain;

+----+------------------------------------+------------+---------------------+

| id | domain                             | did        | last_modified
  |

+----+------------------------------------+------------+---------------------+

|  1 | 12.34.56.53                       | vocalpoint | 2000-01-01 00:00:01
|

|  2 | 23.34.56.54                       | vocalpoint | 2000-01-01 00:00:01
|

|  3 | sbc.foo     | vocalpoint | 2000-01-01 00:00:01 |

|  4 | sbc.nsw.foo | vocalpoint | 2000-01-01 00:00:01 |

|  5 | sbc.vic.foo | vocalpoint | 2000-01-01 00:00:01 |

|  6 | sbc.foo2               | vocalpoint | 2000-01-01 00:00:01 |

|  7 | sbc.nsw.foo2           | vocalpoint | 2000-01-01 00:00:01 |

|  8 | sbc.vic.foo2           | vocalpoint | 2000-01-01 00:00:01 |

+----+------------------------------------+------------+---------------------+

8 rows in set (0.000 sec)

I managed to get registrations working by hardcoding a static realm in the
config, but when when usrloc does a lookup on a handset, Kamailio can't
find user at sbc.nsw.foo and Kamailio returns 404.

It looks like this is because in the locations table it is listed with a
domain of 12.34.56.53 (because the handset is registered by IP).

How should this work normally? Or is it even possible?

Thanks,

Rhys.
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