Welltech WG5260 V.6.2 - Manual (Page 57)

Welltech Computer Co., Ltd.
WellGate 5260 User Guide – V6.2.0 - 57 -
was specified in the establishment request. This is useful to increase
compatibility with switches that require it. On PRI lines it indicates a
not yet used channel id, preferred only.
- 0x00000200: When this bit is set, ISDN Stack sends G.711 A-Law in
outgoing voice calls. When this bit is cleared, ISDN Stack sends
default G.711-Mu-Law in outgoing voice calls. Applicable for 5ESS
variant (T1).
• Q931 General Option.: Behavior of Q.931General Settings
- CC_ASSUME_64K_IF_INTERWORKING
bit: When this bit is set,
the board assumes that data-calls with inter-working indication are
using 64 kbps B-channels; when this bit is reset, these calls are set
to 56 kbps. This rate is transferred to the physical layer only, not
across the Q.931 signaling messages.
- CC_REVERSE_CHAN_ALLOC_ALGO
bit: The default channel-id
allocation algorithm is as follows: TE-side: find the highest channel-
id first NT-side: find the lowest channel-id first. When this bit is reset,
CC uses this default behavior. When this bit is set, CC reverses the
algorithm.
- CC_CLEAR_IF_NOTIFY_SUSPENDED
bit: When this bit is set, the
board 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. But the network does NOT send any Disconnect
message to indicate that the call is cleared down. It must be
assumed that the communication is over, and the call cleared down,
otherwise the call stays up for a long time and the network keeps
charging for it. If the bit is not set (default value), the application
must handle the situation itself (i.e., clear down the call).
- CC_CHAN_ID_16_ALLOWED bit: Applies to PRI/E1 lines (30B+D)
only. 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:
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.
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.
- CC_USE_T1_PRI bit: When this bit is set, the PRI interface type is
forced to T1 (= 23B+D) rather than E1 (= 30B+D) for the ETSI
variant. This is usable in Taiwan, where E1 and T1 lines can be used