Figure 5: Call flow for branch OC client to main office UNIStim phone RECOMMENDED
SR4134 integration with OCS only
You can install the SR4134 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.
CS 1000, OCS, and SR4134 integration
18 Avaya AG2330/SR2330/SR4134 Quick Start Guide
August 2013