AudioCodes Mediant 2000, Руководство пользователя, Страница: 219 / 418

Version 5.6 219 November 2008
SIP User's Manual 3. Web-Based Management
Parameter Description
Idle PCM Pattern
[IdlePCMPattern]
Defines the PCM Pattern that is applied to the E1/T1 timeslot (B-
channel) when the channel is idle.
The range is 0 to 255. The default is set internally according to the Law
select 1 (0xFF for Mu-Law; 0x55 for A-law).
Idle ABCD Pattern
[IdleABCDPattern]
Defines the ABCD (CAS) Pattern that is applied to the CAS signaling
bus when the channel is idle.
The valid range is 0x0 to 0xF. The default is -1 (i.e., default pattern =
0000).
Note:
This parameter is applicable only when using PSTN interface with
CAS protocols.
TDM Bus Local Reference
[TDMBusLocalReference
]
Physical Trunk ID from which the device recovers (receives) its clock
synchronization.
The range is 0 to the maximum number of Trunks. The default is Trunk
ID 1.
Note:
This parameter is applicable only if the parameter
TDMBusClockSource is set to 4 and the parameter
TDMBusPSTNAutoClockEnable is set to 0.
TDM Bus PSTN Auto
Clock
[TDMBusPSTNAutoCloc
kEnable]
Enables or disables the PSTN trunk Auto-Fallback Clock feature.
ƒ
[0]
Disable (default) = Recovers the clock from the E1/T1 line
defined by the parameter TDMBusLocalReference.
ƒ
[1]
Enable = Recovers the clock from any connected synchronized
slave E1/T1 line. If this trunk loses its synchronization, the device
attempts to recover the clock from the next trunk. Note that initially,
the device attempts to recover the clock from the trunk defined by
the parameter TDMBusLocalReference.
Note:
This parameter is relevant only if the parameter
TDMBusClockSource is set to 4.
TDM Bus PSTN Auto
Clock Reverting
[TDMBusPSTNAutoCloc
kRevertingEnable]
Enables or disables the PSTN trunk auto-fallback reverting feature. If
enabled and a trunk returning to service has an AutoClockTrunkPriority
parameter value (refer to ''Configuring the Trunk Settings'' on page
82 )
that is higher than the priority of the local reference trunk (set in the
TDMBusLocalReference parameter), the local reference reverts to the
trunk with the higher priority that has returned to service for the device's
clock source.
ƒ
[0]
Disable (default)
ƒ
[1]
Enable
Note:
This parameter is applicable only when the
TDMBusPSTNAutoClockEnable parameter is set to 1.
TDM Bus Clock Source
[TDMBusClockSource]
Selects the clock source to which the device synchronizes.
ƒ
[1]
Internal = Generate clock from local source (default).
ƒ
[4]
Network = Recover clock from PSTN line.
For detailed information on configuring the device's clock settings, refer
to ''Clock Settings'' on page
393 .