2
Tasks at a
lance
(Optional.) Configuring an FXO interface
• Configuring CID
• Configuring busy tone detection
• Configuring an on-hook delay
• Configuring the off-hook mode
• Configuring ring detection parameters
• Setting the electrical impedance
• Configuring the packet loss compensation mode
(Optional.) Binding an FXS interface to an FXO interface
(Optional.) Configuring an E&M interface
• Configuring the cable type
• Configuring the signal type
• Configuring a start mode for E&M signaling
• Configuring E&M non-signaling mode
• Enabling E&M control signals pass-through
(Optional.) Configuring DTMF
• Configuring DTMF tone sending
• Configuring DTMF tone detection
(Optional.) Adjusting parameters for voice interfaces
• Adjusting gains
• Adjusting timing parameters
• Configuring the comfortable noise function
• Configuring echo cancellation
Configuring basic functions
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter voice interface view.
subscriber-line line-number N/A
3. Configure a description for
the voice interface.
description text
By default, the description of a
voice interface is interface name
Interface.
4. Restore the default settings for
the voice interface.
default N/A
5. Bring up the voice interface.
undo shutdown By default, a voice interface is up.
Configuring call progress tones
Perform this task to configure call progress tones for all voice interfaces on the device.
To configure call progress tones:
