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DTMF Mode
Select a preferred DTMF mode,
RFC 2833
or
SIP
INFO
, for this trunk in the list. This must match
configuration on the server side. If the user does not
know the DTMF mode on the server side, select
Not
Sure
from the list, and SDP will automatically detect the
DTMF mode is Inband or RFC2833.
Try Peer-to-peer RTP
Click
NO
to disable or IPPBX will attempt to notify the
two peers in a conversation to try peer-to-peer RTP
transmission. This is suggested as long as phone and
ITSP side support INVITE or UPDATE method during a
connected call to save the resource of IPPBX.
However, only SIP INFO DTMF mode should enable
this since other DTMF modes require IPPBX being RTP
relay server to support in-line transfer.
From Caller ID
Send the entered number as Caller ID.
Bandwidth Sensitive
Indicate the trunk is over a bandwidth-sensitive link,
e.g. across Internet.
Bandwidth Limitation (kbps)
Leave it blank to disable or, specifies a limit of
bandwidth in kbps for call admission.
Call Admission Control
Select to enable the limitation of concurrent calls for a
SIP trunk.
Allow
<number>
Concurrent Call(s)
Select
Call Admission Control
and enter a number for
allowed concurrent calls.
SIP Domain
Specify the SIP domain used by the proxy and registrar.
If not specified, IP address will be used as the domain
by default.
User Agent
Override default User-Agent header content.
Enable ENUM Resolution
Select to use ENUM resolution, or leave it as blank.
Clear Bindings Prior Registration
Select if failed to the registration, and cannot identify
any abnormal settings.
Disable NAT Traversal
IPPBX uses NAT traversal for outgoing traffics by
default. Select to disable NAT traversal if there is a
machine that could handle NAT issues.
Anti-SIP Blocking
Select to anti the SIP package blocking from ISP.
Gateway Trunk
Select to loose the checking of incoming calls.
Call Keep Alive
Select to check if the call is still ongoing in a certain
time.
Summary of Contents for PBX10 FICHE
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