29.10 Configuring Call Waiting
The Call Waiting table allows you to enable or disable call waiting per FXS port.
Notes:
• This page is applicable only to FXS interfaces.
• You can enable or disable call waiting for all the device's ports using the
global parameter, 'Enable Call Waiting' in the Supplementary Services
page (Configuration tab > VoIP menu > GW and IP to IP > DTMF and
Supplementary > Supplementary Services).
• The CPT file installed on the device must include a 'call waiting
Ringback' tone (caller side) and a 'call waiting' tone (called side, FXS
interfaces only).
• The EnableHold parameter must be enabled on both the calling and the
called sides.
• For additional call waiting configuration, see the following parameters:
FirstCallWaitingToneID (in the CPT file), TimeBeforeWaitingIndication,
WaitingBeepDuration, TimeBetweenWaitingIndications, and
NumberOfWaitingIndications.
• The Call Waiting table can also be configured using the table ini file
parameter, CallWaitingPerPort or CLI command, configure voip > gw
analoggw call-waiting.
 To enable call waiting per port:
1. Open the Call Waiting page (Configuration tab > VoIP menu > GW and IP to IP >
Analog Gateway > Call Waiting).
Figure 29-10: Call Waiting Page
2. Configure the table as required. For a description of the parameter, see the table
below.
3. Click Submit to apply your changes.
Call Waiting Table Parameter Description
Parameter Description
Call Waiting Configuration
CLI: enable-call-waiting
[CallWaitingPerPort_IsE
nabled]
Enables call waiting for the port.
 [0] Disable
 [1] Enable = Enables call waiting for the port. When the device
receives a call on a busy port, it responds with a SIP 182 response
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