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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.
Plan and Assign Extensions
Before you connect the Yeastar S-Series VoIP PBXs, you need to plan and assign extensions for the headquarter and the branch offices.

Plan and Assign Extensions

Before you connect the Yeastar S-Series VoIP PBXs, you need to plan and assign extensions for the headquarter and the branch offices.

Procedure

Log in to PBX web interface, go to Settings > PBX > General > Preferences.
In the Extension Preferences section, change the User Extensions to the desired range.
- Headquarter PBX: 1XXX (4-digit extension number starts with 1)
- BranchA PBX: 2XXX (4-digit extension number starts with 2)
- BranchB PBX: 3XXX (4-digit extension number starts with 3)
Click Save.

Create and register extensions on headquarter PBX and branch office PBXs.