ClearOne StreamNet Integration - Manual (Page 41)

Chapter 5: Services Described 35
To turn on the microphone for a particular zone send the following command addressed to the zone:
#INTERCOm PTT
This command will turn on the microphone and keep it on for 300ms. This command must be repeated at
100ms intervals to keep the microphone on.
When the user is done speaking the following command should be sent:
#INTERCOm PTT OFF
This will immediately turn off the microphone. This is better than waiting for the time out. It is possible to direct
a PTT command to any specific CURRENT session by adding the sessionTag.
A PTT command without any qualifier always transmits to the RECENT session. If there are no CURRENT
sessions then an unqualified PTT will create a new default session.
Normally, it is best to let the Station to Station session time out on its own; however, if desired, the session may
be terminated by sending the command:
#INTERCOm LEAVE [, tagNumber]
Where tagNumber is a unique identification number for an Intercom session. The tag number is assigned
automatically by the system when the session is created. The tag numbers of all sessions are available in the
status report of the intercom service.
If the tag number is omitted all of the sessions will be dropped by the service(s) addressed, station-to-station,
monitor and door sessions. Leave commands will almost always be addressed to a room name.
NOTE: f It is not required to send a leave command for station-to-station or door sessions.
The session will quickly time out if there is no activity. The Leave command is usually sent in
response to a user action to cancel current sessions.
The command will terminate all Intercom sessions in that zone.
Intercom monitor Session
A room monitoring session allows a user to listen to a remote room from one or more other rooms. To start a
Room Monitoring Session send the following command addressed to the zone to be monitored:
#INTERCOm mONITOR, “roomName”, “audience”
“roomName” is the name of the room which is to be monitored.
“audience” is a service, room, or group which will monitor the specified room.
Note that if there is an existing session monitoring the room then this command ADDS the new audience to
the existing session.
To terminate a room monitoring session in any zone(s) send the following command addressed to the
zone(s):
#INTERCOm LEAVE [,mONITOR]
This message can be sent addressed to a single room to stop that one zone from monitoring or addressed to
the room being monitored to terminate the entire session.
Intercom Entry Sessions
Normally a Entry [answering] Session is initiated automatically by a DoorLinX device when a guest presses the
doorbell button. The “audience” of this Entry session is configurable using the system set-up tool.
The DoorLinX initiates an Entry session with all of the rooms [services] in its “audience”. It begins by playing
a stored MP3 file which typically is a chime but could be any MP3 file. After the first room speaks to the door
station all of the other rooms in the audience are dropped from the session. The microphone at the door is left
open so that the guest may answer.