Chapter 6. Configuration
Auto Answer
The ISU 128 auto answer parameter can be configured in one of three ways: Disabled, Enabled, or Dump all calls.
Disabled
When Disabled is selected, the ISU 128 will not automatically answer an in- coming call. The AT answer command (ATA) must be issued to the ISU 128 before it accepts the incoming call. The ringing call can be dumped using the Hang up line command, or answered using the Answer Call command.
These commands are listed under the Dial branch of the main tree. See the chapter Dial Options for more detail.
Enabled
When Enabled is selected, the incoming call is answered. If that call is a BONDING call and requires two B channels, the second call is answered. If the unit is configured for a call that uses only one B channel, such as 56 kbps or 64 kbps, the ISU 128 will not accept a second incoming call.
Dump all calls
When Dump all calls is selected, the ISU 128 will not accept any incoming calls. This keeps the line clear for outgoing calls.
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