ICX 500 Gateway
Doc.no.A100K12202
Page 107
Outgoing call from the ICX-500 door station to an external telephone via the SIP Trunk:
When the phone presses digit 6, the event type Event Trigger Feature (15) is reported, with the
digit 6 as sub event. The calling ICX-500 station is Event Owner and called SIP phone number
and node number is Related To. The RCO pulse time is specified as an additional parameter in
the RCO action string, i.e. RCO 3 ON 20 means pulse RCO 3 for 2 seconds.
Door Opening event when call is initated from the door intercom station
7.3.8. Voice Switching in Noisy Environment
If the intercom station is located in a noisy environment, it might be difficult to switch the voice
direction from the telephone towards the intercom station. However, there is a setting in the
AlphaCom to overcome this problem. In AlphaPro,
Exchange & System > System > VoIP
, set
the parameter
Optimized voice duplex control when conversation with SIP trunk/stations
When this flag is set, the initial voice direction is forced to be from the intercom towards the
telephone. When the phone operator starts to speak, the voice direction will switch towards the
intercom station, regardless of the level of the audio signal from the intercom station. As soon as
the phone operator stops speaking, the voice direction will switch back to the initial direction.
