The dSIPRouter Platform.

dSIPRouter allows you to quickly turn Kamailio into an easy to use SIP Service Provider platform, which enables two basic use cases:

SIP Trunking services: Provide services to customers that have an on-premise PBX such as FreePBX, FusionPBX, Avaya, etc. We have support for IP and credential based authentication.

Hosted PBX services: Proxy SIP Endpoint requests to a multi-tenant PBX such as FusionPBX or single-tenant such as FreePBX. We have an integration with FusionPBX that make this really easy and scalable!