ASAI and Call Control

Third Party Send DTMF Signals

Starting with G3V4, this controlling capability is used by the adjunct to transmit a sequence of DTMF tones on behalf of a party on the call.

Information Flow

The adjunct expects a response to its request.

The ECS either:

Transmits the tones on the call after it has validated the parameters, or

Denies the request if it is unable to service it

Third Party Send DTMF Signals Parameters

tx_party_id

[mandatory] Identifies the party on whose behalf the DTMF

 

signals are to be sent. This party must map to a valid,

 

physical endpoint on the call.

rx_party_id

[optional] If present, this parameter is ignored. A list of up to

 

5 party_ids that will receive the DTMF signals. If this list is

 

null, then all parties on the call receive the DTMF signals if

 

otherwise eligible (that is, if they are connected via ports that

 

support end-to-end signaling). See ‘‘Considerations’’ on

 

page 4-73.

char_seq

[mandatory] Identifies the character sequence to be

 

generated (maximum 32).

tone_dur

[optional] Specifies in .01 second increments, the duration of

 

each tone. The default duration is .35 seconds (350

 

milliseconds). Valid range of values accepted by the ECS for

 

this parameter is from 6 to 35 seconds (0.6 to 0.35 seconds).

pause_dur

[optional] Specifies in .01 second increments, the duration of

 

the pause in between tones. The default duration is .10

 

seconds (100 milliseconds). Valid range of values accepted

 

by the ECS for this parameter is from 4 to 10 seconds

 

(0.04 to 0.10 seconds).

ACK (Positive Acknowledgement) Parameters

An acknowledgement is sent when it is determined that the DTMF digits could be transmitted, not when done transmitting. There are no parameters contained in this ACK.

Issue 7 May 1998 4-71

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Lucent Technologies 555-230-220 manual Third Party Send Dtmf Signals Parameters