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Admin Guide
Admin Guide for Yeastar S-Series VoIP PBX.
Multisite Interconnect
You can connect multi-site Yeastar S-Series VoIP PBX easily by Multisite Interconnect feature.
Interconnect Multiple S-Series VoIP PBXs
In this topic, we introduce how to interconnect 3 Yeastar S-Series VoIP PBXs. The 3 PBXs are located in different places. You can connect more Yeastar S-Series VoIP PBXs in the same way.
Forward Ports for Headquarter PBX
If the headquarter PBX is behind a router, you need to forward ports for the headquarter PBX.

Forward Ports for Headquarter PBX

If the headquarter PBX is behind a router, you need to forward ports for the headquarter PBX.

Note: You don't need to forward ports for the branch PBXs.

Procedure

Log in to the router that is connected to the headquarter PBX.
Forward ports for the headquarter PBX. Below are the default ports that you need to forward:
- SIP Registration Port: UDP 5060
- RTP Ports: UDP 10000-12000