Administrator’s Guide for SIP-T5 Series Smart Media Phones412Parameter PermittedValues DefaultEnables or disables the keep mute feature for the IP phone.0-Disabled1-EnabledFor SIP-T58V/T58A/T56A IP phones:The default value is 0.For CP960 IP phones:The default value is 1.If it is set to 0 (Disabled), mute feature is automatically deactivated when the active call ends.If it is set to 1 (Enabled), the mute state can be kept across calls after the mute feature isactivated until you manually deactivate the mute feature or the phone restarts.Note: For SIP-T58V/T58A/T56A IP phones, if it is set to 1 (Enabled), you cannot customizethe Mute key. It works only if the value of the parameter “features.allow_mute” is set to 1(Enabled).Web User Interface:NonePhone User Interface:NoneIntercomIntercom allows establishing an audio conversation directly. The IP phone can answer intercomcalls automatically.Intercom can be also used to monitor a specific user for status changes on IP phones. Forexample, you can configure an intercom key on a supervisor’s phone to monitor the IP phoneuser status (busy or idle). When the monitored user places a call, a busy indicator on thesupervisor’s phone indicates that the user’s phone is in use. When the monitored user is idle, thesupervisor can tap the intercom key to automatically connect with a preconfigured targetextension for outgoing intercom calls. When the monitored user receives an incoming call, thesupervisor can tap the intercom key to pick up the call directly. To pick up the call, you have toconfigure the directed call pickup code in advance. You can configure the directed call pickupcode when configuring an intercom key.IP phones support this feature using a SUBSCRIBE/NOTIFY mechanism as specified in RFC 3265.And this feature depends on support from a SIP server.Icon indicator (configured as an intercom key)Icons DescriptionIntercom idle state
