Cisco IE-3000-8TC Administration Guide - Page 291

Connection Settings Setting Output Attenuation (dB) Output Level (dB) PRI Channels Enable All Channels Enable Channel Ranges Description 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. 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. 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. 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. Note You can use up to five partial PRI channel ranges, beyond which you will have to lease the entire channel range. 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 Setting Connection Settings Description Protocol Type T1 PRI spans provide several options, depending on the carrier or switch. Determine the switch to which you are connecting and the preferred protocol. Show Advanced Settings/Hide Advanced Settings Interface Settings Protocol Side 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. OL-27022-01 Administration Guide for Cisco Business Edition 3000, Release 8.6(4) 271