Cisco Catalyst 3000, Руководство администратора

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Description Setting
Attenuation is measured in decibels, and the lower the number, the
better the voice quality. Adjust the attenuation and input gain values
to achieve maximum voice quality.
The minimum value is –6, and the maximum value is 14.
Output Attenuation (dB)
This option sets the attenuation of the signal before it enters the line.
To reduce the line loss set the output level to 0, –7.5, or –15 dB. Output Level (dB)
PRI Channels
If you leased the entire PRI span from your service provider, check
this check box.
For E1 PRI connection type, the channel range available is from 1
to 32 lines.
Enable All Channels
If you did not lease the entire PRI span from your service provider,
enter the partial channel range that is available for use. Enter
commas to separate the ranges; for example, 6-8, 10-12.
You can use up to five partial PRI channel ranges, beyond
which you will have to lease the entire channel range.
Note
Enable Channel Ranges
Connection Type: T1 PRI
The following table describes the settings on the Add PSTN Connection > Connection Settings page when
your chosen Connection Type is T1 PRI.
Table 66: Settings On the Connection Settings page for T1 PRI connection type
Description Setting
Connection Settings
T1 PRI spans provide several options, depending on the carrier or
switch. Determine the switch to which you are connecting and the
preferred protocol. Protocol Type
Show Advanced Settings/Hide Advanced Settings
Interface Settings
This setting specifies whether the gateway connects to a Network
device or to a User device.
Make sure that the two ends of the PRI connection use opposite
settings. For example, if you connect to a PBX and the PBX uses
User as its protocol side, select Network for this device. Typically,
use User for this option for central office connections.
Protocol Side
Administration Guide for Cisco Business Edition 3000, Release 8.6(4)
OL-27022-01 271
Connection Settings