The Comrex Switchboard Traversal Server will be down for an hour on Wednesday, July 17th for scheduled maintenance. Target time is 10:00AM EDT (UTC-2:00PM). Please contact our tech support team for any assistance.

Firmware Updates

VH2 1.2 Firmware

VH2 1.2 firmware is available for download. This firmware is installed by the user via the Device Manager application.

VH2 1.2 Changelog

Download VH2 1.2 Firmware

VH2 Compatibility

VH2 Compatibility Info

Note: Integration with Cisco Unified Communication Manager (CUCM) is not supported for Comrex VH2.



Polycom VVX 201 IP Phone

The Polycom VVX 201 IP phone is an IP desk phone that provides excellent sound quality and reliable features in an easy to configure package.

The companion phone for the VH2, it allows for outgoing calls to be placed, calls to be answered and screened, and for conversations to take place “off-air”.

Contact a Comrex audio dealer to purchase.

Polycom 331 IP Phone

The former companion phone for the VH2, the Polycom 331 IP is an IP desk phone.

Note: We no longer sell the PolyCom 331 IP phone. However, we still support it, and it is still compatible with VH2!

VH2 Rack Kit

Mount a single or two side-by-side VH2s in your 19″ rack.

*Kit includes: Rack shelf, customized front panel and mounting screws.

Contact a Comrex audio dealer to purchase.


Power Supply for VH2 (4-pin connector)


4-pin connector power supply for VH2 – IEC power cord sold separately

Power Cord (IEC Socket)


Contact Closure Cable


DB9M to mini-DIN 9M.

Can’t find what you need?

Contact us.