D13841.08
10.2007
47
TANDBERG
3G GATEWAY
USER GUIDE
TANDBERG
3G GATEWAY
USER GUIDE
Argument Details for the Default DID Service
DID Argument Details
Use Remainder.
Specifies whether a particular part,
i.e. the remainder, of the inbound number will be used
to form a part of the outbound number.
For a remainder to become non-zero a specified
inbound
Prefix
has to match the first part and/or
a specified inbound
Suffix
has to match the last
part of an inbound number, however individually or
combinations of both never fully match the complete
inbound number.
Both inbound Prefix and Suffix can be defined under
Dialplan entry details
. When
Use Remainder
, is
active the previously mentioned “remainder” will be
appended to and precede the
Prefix
and the
Suffix
of the outbound number, respectively. The outbound
Prefix
and
Suffix
precede and append, respectively,
the “remainder” as to form the complete outbound
number.
The latter prefix and suffix can be defined under
Arguments
. Prefixes and suffixes are standard
parameters of dial plans.
Suppose, as an example, in the
Dialplan entry details
the inbound Prefix equals 9876 and inbound suffix
equals 54. In the
Arguments
settings the outbond
prefix equals 1234. For an inbound connection to
phone number 9876154 the 3G Gateway will strip the
prefix 9876 and the suffix 54 from the called number,
hence the remainder equals 1. For the outbound
connection the 3G Gateway will add the prefix
(configured in arguments) in front of the remainder,
hence the outbound number equals 12341.
For the same settings with an inbound number
9876254 results in an outbound number 12342.
In case the prefix and/or suffix fully match the
inbound number the remainder will be empty and the
useremainder value will be ignored.
Net type.
Either
H.324m
,
H.323
or
SIP
of the
outbound call.
AV mode.
This mode determines the outbound audio
and video call settings. It is either
Audio Only
,
Audio
+ Video
,
Auto(matic) no fallback to audio
,
Auto +
fallback to audio
and
Auto + always fallback to
audio
.
In the
•
Audio Only
mode a voice call is being setup,
even when all endpoints support both audio and
video capabilities. Note that this setting will be
overruled in case Allow Forwarding is set to Yes and
both endpoints possess audio and video capabilities.
In the
•
Audio + Video
mode a call is only being
setup when endpoints support both audio and
video capabilities and a call with both these
capabilities can be set up.
In the
•
Auto
mode a call is being setup according
to the capabilities of the endpoints. Of the latter,
3 versions can be distinguished: no fallback to
audio, fallback to audio or always fallback to audio.
In the
•
no fallback to audio
case either an
audio
+ video
or an audio only call is being setup,
depending on the capabilities choice of the
initiating endpoint, i.e. when an
audio + video
call
is being set up, whereas the receiving endpoint
only supports audio, the call is terminated.
In the
•
fallback to audio
case capabilities can be
changed to an audio only call when the receiving
endpoint supports only audio, even when an
audio +
video
call is being set up by the initiating endpoint.
The
•
always fallback to audio
case is used in case
the telephony switch interferes or cannot handle
capability renegotiation, therefore when an
audio
+ video
call fails automatically an audio call will be
set up.
Prefix.
Specifies the first part, i.e. the part
preceding the remainder, of the outbound
number. The outbound prefix can be
defined under
Arguments
.
Suffix.
Specifies the last part, i.e. the part
appended to the remainder, of the Outbound
number. The outbound suffix can be defined
under
Arguments
.
Use sub number.
The sub number is a number
extension following the main number separated from
the main number by an
*
. In this way a number plan
behind a main number can be reached directly.
Allow forwarding.
After call setup the
call is offloaded from the 3G Gateway
system, i.e. not routed via the 3G Gateway
system any longer, to free resources.
No Media Sources can be added to DID
service.
