End of the Call
Proceed as follows:
• Separately for analogue ports
• Using the Configuration Manager (page Public switched tel. networks > Analogue > Phone numbers > Configure)
Requirements:
• External analogue port (optional, see Technical Data in the Instructions)
ANALOGUE CONNECTION
Select the analogue connection to be displayed/configured.
Busy signal detection (incoming calls)
Busy signal detection (outgoing calls)
The PBX recognises the busy signal sent by the public exchange.
It needs this to identify that the call connection has finished and to automatically disconnect an ISDN phone.
Note: Disable this setting if the PBX identifies disruptions on the external line as the busy signal, because this would cause it to interrupt conversations. In this situation, the subscriber must signal to the PBX that the call is ended by disconnecting.Minimum length of busy signal (3-20 seconds)
The minimum length of the busy signal specifies the time (in seconds) the PBX takes to identify a busy signal sequence. This prevents, for example, the PBX identifying speech as a busy signal.
Continuous tone
Requirements:
• The PBX must recognise the continuous tone sent by the network provider as the end of the call
The PBX recognises the continuous tone sent by the network provider as the end of the call connection.
Loop current detection
Requirements:
• The PBX must recognise the drop in loop current sent by the network provider at the end of the call
The PBX recognises the end of the call when the network provider drops the loop current to zero.
DTMF code 'D'
Requirements:
• The PBX must recognise the DTMF code "D" sent by the network provider at the end of the call.
The PBX recognises the end of the call when the network provider sends DTMF code "D".