[SR-Users] Using SR for Number Translation & Number Portabilty Applications

[Henning Westerholt]

> Yaron wrote:
> Thanks for the quick response. I have already played with the sqlops -
> this is an obvious way to do it. I will further investigate cr and sqlops
> and decide which is best for my purposes.

Hello Yaron,

> I liked the idea of having several instances of SIP-ROUTERs which are
> independent of each other- I understand that cr answers it.

Indeed, this is one advantage of using an in-memory cache. But you probably
need some more DB access on the servers for things like authentication.

> I have another question - I was trying to add alpha-numeric character
> into the cr prefix and it seems it is not supported. We are using 'D' prefixes
> in our network in order to route between different elements in the network.
> Is there a way to support it? Maybe another routing module?

The cr module support also a extended matching mode, but it will be probably
not really feasible with millions of routes:
http://kamailio.org/docs/modules/stable/modules/carrierroute.html#id2651893

Another thing you could do is use another "domain" for the D prefix, e.g. one
for the default routing, and then another one for the D case. The module support
matching for the domain as well. You could maybe also use flags for matching.
Other possible modules for PSTN routing are lcr and mtree.

Regards,

Henning