U
SER
M
ANUAL
©
VOI
SPEED
L
TD
.
20
standard.
-
Select
‘Via SIP INFO’
to send DTMF signals within SIP INFO
messages (outdated).
The settings below should be considered only if the SIP adapter is being used as a SIP
carrier.
Send DTMF to
PSTN
When the PBX begins routing an outgoing call over the PSTN
network, it sends a request signal to the FXO port. This port replies
with a
‘200 OK’
message in case the outgoing call is allowed to go
ahead. By selecting the option
‘After sending 200 OK’
the adapter
sends the acknowledgment back to the PBX before sending the
DTMF signals (containing the destination number) over the PSTN
line. In this case you will be able to hear dialling tones on the phone.
Alternatively, when
‘Before sending 200 OK’
is selected, the
adapter sends DTMF signalling before acknowledging the
transmission back to the PBX. This option enables the adapter to
emulate a traditional SIP carrier.
Outing call to
PSTN
When enabled, the PBX can perform outgoing calls over the PSTN
line.
PSTN-CID to
"SIP”
When enabled, the adapter detects the Caller ID sent over the PSTN
line and communicates it to the PBX server using the SIP standard.
Note:
the first two options above should be disabled when the FXO adapter
registers on the PBX as a normal extension.
Note:
the adapter requires the phone to ring twice in order to detect the Caller
ID when this information must be sent to the PBX. In such a case, the
emergency phone (when connected to the FXS port) rings twice.
Voice
In this section you can configure the codec settings.