Version 5.2 189 September 2007
SIP User's Manual 5. Web-based Management
Table 5-37: E1/T1/J1 Configuration Parameters
ini File Field Name
Web Parameter Name
Valid Range and Description
General Call Control
Behavior
[ISDNGeneralCCBehavior
]
Bit-field used to determine several general CC behavior options. To
select the options, click the arrow button, and then for each required
option, select 1 to enable. The default is 0 (i.e., disable).
 [2] = data calls with interworking indication use 64 kbps B-channels
(physical only).
 [8] REVERSE CHAN ALLOC ALGO = Channel ID allocation
algorithm.
 [16] = The gateway clears down the call if it receives a NOTIFY
message specifying 'User-Suspended'. A NOTIFY (User-Suspended)
message is used by some networks (e.g., in Italy or Denmark) to
indicate that the remote user has cleared the call, especially in the
case of a long distance voice call.
 [32] CHAN ID 16 ALLOWED = Applies only to ETSI E1 lines
(30B+D). Enables handling the differences between the newer QSIG
standard (ETS 300-172) and other ETSI-based standards (ETS 300-
102 and ETS 300-403) in the conversion of B-channel ID values into
timeslot values:
1) In 'regular ETSI' standards, the timeslot is identical to the B-
channel ID value, and the range for both is 1 to 15 and 17 to 31. The
D-channel is identified as channel-id #16 and carried into the timeslot
#16.
2) In newer QSIG standards, the channel-id range is 1 to 30, but the
timeslot range is still 1 to 15 and 17 to 31. The D-channel is not
identified as channel-id #16, but is still carried into the timeslot #16.
When this bit is set, the channel ID #16 is considered as a valid B-
channel ID, but timeslot values are converted to reflect the range 1 to
15 and 17 to 31. This is the new QSIG mode of operation. When this
bit is not set (default), the channel_id #16 is not allowed, as for all
ETSI-like standards.
 [64] USE T1 PRI = PRI interface type is forced to T1.
 [128] USE E1 PRI = PRI interface type is forced to E1.
 [256] START WITH B CHAN OOS = B-channels start in the Out-Of-
Service state (OOS).
 [512] CHAN ALLOC LOWEST = CC allocates B-channels starting
from the lowest available B-channel id.
 [1024] CHAN ALLOC HIGHEST = CC allocates B-channels starting
from the highest available B-channel id.
Note: When using the ini file to configure the gateway to support several
ISDNGeneralCCBehavior features, add the individual feature values. For
example, to support both [16] and [32] features, set
ISDNGeneralCCBehavior = 48 (i.e., 16 + 32).
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