LANconfig: VoIP Call Manager / Lines / Analog lines
WEBconfig: LCOS menu tree / Setup / Voice Call Manager / Lines / Analog
- Name Name of the line; may not be identical to another line that is configured in the device.
- DomainThe analog line's domain name used for addressing in SIP.
- Cln prefix The call prefix is a number placed in front of the caller number (CLI; SIP "From:") for all incoming calls on this analog line in order to generate unique telephone numbers for return calls. For example; a number can be added, which the call router analyzes (and subsequently removes) to select the line to be used for the return call.
- Number/Name
Internal number/SIP URI that each call on this analog line is given
as call destination. This number can differ from the telco's actual call
number for the analog connection (mapping).
Note: Here you can, for example, enter the telephone number for a group that is to receive incoming calls. This allows you to flexibly control which telephones ring for incoming calls, or to transfer calls to a mobile phone number or answering machine after a certain time.
- Active Activates or deactivates the entry.
- Comment Comment on this entry.
- Caller-ID signaling Providers of analog telephone connections support various services including Caller ID transmission, i.e. the caller's number is shown in the display of the telephone being called. This service is also known as Calling Line Identification Presentation (CLIP). Depending on the country and provider, two different methods of modulation are used to transfer the caller ID over the analog line (FSK or DTMF).
- Caller-ID transmission requirements
Apart from selecting the modulation method, different countries and
providers also have different time delays in the signaling of the Caller
ID over analog lines The telephone being called expects the Caller ID
at a certain time, and so providers should set up their systems accordingly.
Possible values:
- Default: This setting causes the standard value for the country where the device is operated to be taken.
- During ringing: The Caller ID is transmitted while the phone is ringing, between the first and second ring.
- RP AS: Transmission of the Caller ID is not connected with the ringing but is transferred via a special "alarm signal". This alarm signal is a ringing impulse (Ringing Pulse Alerting Signal, RP-AS). The Caller ID can be transferred after the ringing impulse.
- Line reversal: Transmission of the Caller ID is not connected with the ringing but is transferred via a special "alarm signal". The alarm signal is sent by a brief reversal of polarity in the line (line reversal). The Caller ID can be transferred after the line reversal.