Xchange Server Information

Minimum Version Required:


Installation Notes:

In Xchange Server, take care to enter the correct IP address for the Office Serv link program, not the telephone system.

Directory Download:

Extensions, Trunks


MPS mode isn’t support with SIP Trunks (MGI mode only).

The Softphone license is discontinued for Xchange Server, these notes are for licensed customers.

PBX version 5.03 is required with Xchange softphone this fixes Inbound consult transfer one way audio issues.

Internal consult transfer isn't supported with SIP trunks and Exchange softphone as will result in one way audio.

We support MGI mode only with Exchange softphone. Exchange softphone will have an issue with ‘Hold’ with MPS mode enabled.

Only extensions with names are downloaded, this is to prevent too many extensions from being downloaded.

When dialing over analog trunks, there is a delay in receiving the dialed number. This can be resolved by enabling LCR and setting the expected number of digits.

Neither Paired extensions nor SIP extensions are supported fully.

Connection Information




A 3rd party OpenTsp license is required.
3rd party SIP license is required for softphone.

Firewall Requirements:

OSLink: TCP - 6000

PBX Information


The Samsung OfficeServ connects to the LAN via the socket on the PBX.
The OfficeServ Link program runs on a local PC (often the Xchange Server) and acts as a gateway to allow Xchange Server to PBX.

Driver Requirements:


Firmware Requirements (for new installations):

Last tested version = T5.03u

WAN Connectivity
Directory Support
Trunk Monitoring
Analog Phones
Agent Features
Call Tracking Support
CLI Retention Support
Type Make Call Hang up Answer Deflect Blind Transfer Supervised Transfer Hold Pick up Send DTMF Call Fwd Dialback
Samsung Handset