Avaya AG2330 - AG2330 Integration with OCS Only; OCS-Only Call Flows

AG2330 integration with OCS only
You
can install the AG2330 in an OCS-only network without the CS 1000. In this scenario, the
Media Gateway provides PSTN trunks and FXS connections to POTS phones (but not fax) for
the OCS network, and the OCS server provides SIP call routing.
FXS phones cannot perform a SIP registration with the OCS network. Instead, the OCS server
views FXS phones as trunk numbers.
The following figure shows a sample network topology. In this scenario, the OCS is located at
the main office and the AG2330 is located at the branch office.
Figure 22: OCS and AG2330 interoperation
The AG2330 provides connections to external PSTN trunks and analog POTS phones. The
OCS provides the necessary call routing for the branch analog phones, OC phones, and OC
clients. For calls that pass between the OCS network and the PSTN, the Mediation Server
provides
the necessary transcoding to allow communication between the PSTN and the OCS
network.
In an OCS-only solution, the sip-ua sip-server command must point to the IP address
of the Mediation Server.
Related topics:
OCS-only call flows on page
49
OCS-only call flows
The
following figure shows the signaling and media flows within a network where the AG2330
and the Mediation Server are integrated with an OCS server in the Enterprise Voice
AG2330 integration with OCS only
Avaya AG2330/SR2330/SR4134 Quick Start Guide August 2013 49