OHP-4000 - simply connect to the music-on-hold input of any PBX or KEY telephone system.

OHP-4500 - simply connect to any ordinary phone jack in your home or small office. Provides on-hold audio capability to all phone extensions. OHP-4500 click here.

OHP-4000 Pricing - click here

OHP-4500 Pricing - click here


OHP-4000 Product Sheet
(for PBX and KEY phone system users)


OHP-4500 Product Sheet
(for ordinary multi-line telephone users)


Connecting the OHP-4000 Series

Connecting the OHP-4000 Series to a PBX/KEY Phone System or an Analog Phone System is as easy as following a few simple steps. Choose which setup you have from the options below:

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