Vertical Communications DSU and DSU II manual Muting Your Telephone, ∙ To mute your telephone

GCA70–245 Using The Other Telephone Features

8.10Monitoring A Conversation Between Two Telephones (Service Observing)

If your telephone provides the installer-programmed service observing feature, you can monitor an on-going conversation at another telephone in an undetected manner. You can use this feature on-hook or off-hook. You may also make a SOHVA call to a station you are actively monitoring, enabling you to assist the station user while listening to the distant party. For this feature, the called station must be programmed to be “observable,” and your telephone must have a pre-programmed SOHVA button.

∙To monitor an in-progress call,

1.Press INTERCOM.

2.Dial # 0 3.

3.Dial extension number of telephone to be monitored.

4.Press SPEAKER to end monitoring.

∙To initiate a SOHVA while monitoring a call at another station,

1.Press pre-programmed SOHVA button.

2.Make announcement (distant party will not hear the announcement; party receiving SOHVA can press MUTE button to respond to your call).

NOTE: The station you are observing may not allow a SOHVA call if it is in speakerphone mode. However, the voice announce block feature, if enabled at the monitored station, will not block a SOHVA from a monitoring station.

8.11 Muting Your Telephone

By using the MUTE button, you can block transmission of your voice to the distant party. For example, if someone comes into your office to talk to you and you do not want to interrupt the distant party, press the MUTE button. The MUTE button turns on when you press it and turns off when you press it again.

∙To mute your telephone,

1.Press and engage MUTE (MUTE light turns on).

∙To return to the distant party,

1.Press and disengage MUTE (MUTE light turns off).

LCD Speakerphone Reference Manual 8–9