User`s manual

H.323 User's Manual 5. Web Management
Version 5.0 157 December 2006
5.6.4 Configuring the TDM Bus Settings
¾ To configure the TDM Bus Settings parameters, take these 5 steps:
1. Open the ‘TDM Bus Settings’ screen (Advanced Configuration menu > TDM Bus
Settings); the ‘TDM Bus Settings’ screen is displayed.
Figure 5-44: TDM Bus Settings Screen
2. Configure the TDM Bus Settings parameters.
3. Click the Submit button to save your changes.
4. To save the changes so they are available after a power fail, refer to Section 5.9.2 on
page 193.
5. A device reset is required to activate the TDM Bus Settings parameters. To reset the
Mediant 1000, refer to Section 5.9.3 on page 195.
Note: Usually the ‘PCM Law Select’ parameter is set to A-law for E1 trunks and
to µ-law for T1 trunks.
Refer to Section 10.1 on page 293 for information on configuring the ‘TDM Bus Clock
Source’, ‘TDM Bus Enable Fallback’ and ‘TDM Bus PSTN Auto Clock’ parameters.
Table 5-33: TDM Bus Settings Parameters (continues on pages 157 to 158)
Parameter Description
PCM Law Select
[PCMLawSelect]
1 = Alaw (default)
3 = MuLaw
Usually A-Law is used for E1 spans and µ-Law for T1 and J1
spans.
TDM Bus Type
[TDMBusType]
N/A.
Idle PCM Pattern
[IdlePCMPattern]
PCM Pattern to be applied to E1/T1 timeslot (B-channel) when the
channel is idle.
Range 0x00 to 0xFF.
Default = -1 (default pattern = 0xFF for µ-Law, 0x55 for A-law).