How do I record or monitor a digital telephone

There are several ways to record or monitor a digital phone using Dees or Melco service observing systems.  Actually, the best way to monitor is direct digital recording where you bridge your digital phone pairs to the recorder.  Recorders from Revcord, DVS Analytics and Oaisys handle most telephone systems such as Nortel, Avaya, Panasonic. This direct digital recording allows recording each telephone station capturing inbound, outbound and station to station intercom calls.  Caller ID and other station information is passed to the recorder.  Service observing units do not have direct digital connections.

A very practical way of recording and monitoring digital telephones is with the EDAC.  This is an Electronic Digital to Analog Converter.  The EDAC has been used since digital phones were introduced and is still widely used.  However, the EDAC allows only monitoring or recording the telephone station and does not allow Talk Assist on the service observing units.

A simple way to monitor or record a digital telephone set is to use a Y connector in the handset cord.  Simply, the center pair has both sides of the conversation on it, as it is the wires to the speaker in the handset.  The problem with this method is that a wire pair must be run back to the equipment room where the recorder or service observing system is located.  When using Service observing units the Talk assist feature is available.