
IP PBXs USER MANUAL
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Transport Protocol
: To set the VoIP trunk to use UDP, TCP or TLS as the transport protocol, in most cases the providers use UDP as
default transport protocol.
Prompts Language
: You can choose a desired language of the system voice prompts to play for the incoming calls from this trunk.
For example, if the call is not answered or the user is busy, the IPPBX system will notify the caller to leave a voice message in the
language you set.
Simultaneous Calls
: This option will limit the number of simultaneous outbound calls can be made through this trunk, leave it
blank as not limited.
Preferred Outbound CID
: To set preferred outbound CID of this trunk of the extensions.
Outbound CID
: The number you want to display to the called party while dialing out through this trunk. It depends on the service
provider whether it works or not.
Dial Permission
: Custom dial permission for this trunk, by default it uses the “default” dial permission. Configure only if this trunk is
for branch office integration, so calls coming from the other side can dial out from this IPPBX trunk directly. DO NOT change unless
you fully understand how this feature works.
Video Codecs
: If the ITSP supports video calls then you can enable compatible video codecs here for video phone calls.
Send RPID
: Send the Remote Party ID header. PAI and RPID are mutually exclusive you can set one or the other but not both.
Available Codec
: IPPBX system supports the following audio codecs G.711 (ulaw, alaw), G.722, G.726, G.729, GSM, Opus and Speex.
You may choose the appropriate audio codecs from here and click to add to Selected Codec.
Selected Codec
: Audio codecs you chose will be added here. The sequence of the audio codecs listed here is the sequence of the
audio codecs to be used for negotiating the media of a phone call to be established.
6.2
Dial Rules
Path:
Telephony -> Outbound Control -> Trunks
On the IPPBX system you can setup different dial rules, for users to dial numbers in different format/pattern and cause the IPPBX system
to call out through different trunk lines. For example, users dial the numbers with a prefix 9 to call out through the CO lines (land lines).
Or dial the numbers with a prefix 00 to call out through the VoIP lines (SIP trunks).
Click on
button to create a dial rule, below is an example dial rule.