Call Waiting Parameters

The call waiting parameters are described in the table below.

Call Waiting Parameters

Parameter

Description

'Enable Call Waiting'

configure voip > gateway dtmf-supp-service supp-service-settings > call-waiting

[EnableCallWaiting]

Enables the Call Waiting feature.

[0] Disable
[1] Enable (default)

If enabled, when an FXS interface receives a call on a busy endpoint, it responds with a 182 response (and not with a 486 busy). The device plays a call waiting indication signal. When hook-flash is detected, the device switches to the waiting call. The device that initiated the waiting call plays a call waiting ringback tone to the calling party after a 182 response is received.

Note:

The device's Call Progress Tones (CPT) file must include a Call Waiting ringback tone-- for analog interfaces: (caller side) and a call waiting tone (called side, FXS only).
The EnableHold parameter must be enabled on both the calling and the called side.
You can use the table parameter CallWaitingPerPort to enable Call Waiting per port.
For information on the Call Waiting feature, see Enabling Call Waiting.

configure voip > sip-definition settings > send-180-for-call-waiting

[Send180ForCallWaiting]

Determines the SIP response code for indicating Call Waiting.

[0] = (Default) Use 182 Queued response to indicate call waiting.
[1] = Use 180 Ringing response to indicate call waiting.

'Number of Call Waiting Indications'

configure voip > gateway dtmf-supp-service supp-service-settings > nb-of-cw-ind

[NumberOfWaitingIndications]

Defines the number of call waiting indications that are played to the called telephone that is connected to the device for Call Waiting.

The valid range is 1 to 100 indications. The default is 2.

Note: The parameter is applicable only to FXS ports.

'Time Between Call Waiting Indications'

configure voip > gateway dtmf-supp-service supp-service-settings > time-between-cw

[TimeBetweenWaitingIndications]

Defines the time (in seconds) between consecutive call waiting indications for call waiting.

The valid range is 1 to 100. The default is 10.

Note: The parameter is applicable only to FXS ports.

'Time Before Waiting Indications'

configure voip > gateway dtmf-supp-service supp-service-settings > time-b4-cw-ind

[TimeBeforeWaitingIndications]

Defines the interval (in seconds) before a call waiting indication is played to the port that is currently in a call.

The valid range is 0 to 100. The default time is 0 seconds.

Note: The parameter is applicable only to FXS ports.

'Waiting Beep Duration'

configure voip > gateway dtmf-supp-service supp-service-settings > waiting-beep-dur

[WaitingBeepDuration]

Defines the duration (in msec) of call waiting indications that are played to the port that is receiving the call.

The valid range is 100 to 65535. The default is 300.

Note: The parameter is applicable only to FXS ports.

[FirstCallWaitingToneID]

Defines the index of the first Call Waiting Tone in the CPT file. This feature enables the called party to distinguish between different call origins (e.g., external versus internal calls).

There are three ways to use the distinctive call waiting tones:

Playing the call waiting tone according to the SIP Alert-Info header in the received 180 Ringing SIP response. The value of the Alert-Info header is added to the value of the FirstCallWaitingToneID parameter.
Playing the call waiting tone according to PriorityIndex in the ToneIndex table parameter.
Playing the call waiting tone according to the parameter “CallWaitingTone#' of a SIP INFO message.

The device plays the tone received in the 'play tone CallWaitingTone#' parameter of an INFO message plus the value of the parameter minus 1.

The valid range is -1 to 1,000. The default is -1 (i.e., not used).

Note:

The parameter is applicable only to analog interfaces.
It is assumed that all Call Waiting Tones are defined in sequence in the CPT file.
SIP Alert-Info header examples:
Alert-Info:<Bellcore-dr2>
Alert-Info:<http://…/Bellcore-dr2> (where "dr2" defines call waiting tone #2)
The SIP INFO message is according to Broadsoft's application server definition. Below is an example of such an INFO message:

INFO sip:06@192.168.13.2:5060 SIP/2.0
Via:SIP/2.0/UDP
192.168.13.40:5060;branch=z9hG4bK040066422630
From: <sip:4505656002@192.168.13.40:5060>;tag=1455352915
To: <sip:06@192.168.13.2:5060>
Call-ID:0010-0008@192.168.13.2
CSeq:342168303 INFO
Content-Length:28
Content-Type:application/broadsoft
play tone CallWaitingTone1