I have something similar and I use the following architecture:


NGCP-A-------------------------subscribres A
|
|
sip trunk between A and B
|
|
NGCP-B-------------------------subscribers B
|
|
sip trunk between B and C
|
NGCP-C-------------------------Subscribers C
|
|
sip trunk between A and C
|
NGCP-A-------------------------subscribres A


The only thing in my scenario is that Subscriber A can only register in NGCP A. ...and the same is valid fo B and C

if this is something that will work for you as well email me for more details how to set it up!
Ari.



On Sunday, January 31, 2016 8:06 AM, Gholamreza Sabery <gr.sabery@gmail.com> wrote:


I am trying to create a cluster of Kamailio servers. I want users that are registered on one server to be able to contact and call users on other servers. How can I implement this in Kamailio?

PS: My servers are in a private network and I do not have DNS.

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