Hi,

Can anyone provide feedback on why I am not hearing ring back on the first participant that is joined into a call using ACE third party call control v3.4 after joining a second participant in?

The particulars (please ignore the markup of quotes etc. as this was a direct copy from my programming language invoking a server side get):

1. ACE web call invoked to make call and join the first participant

	"<soapenv:Envelope xmlns:soapenv=""http://schemas.xmlsoap.org/soap/envelope/"" xmlns:loc=""http://www.csapi.org/schema/parlayx/third_party_call/v3_4/local"">"&_

	 "<soapenv:Body>"&_

		"<loc:makeCallSession>" &_

			"<loc:callParticipants>5554848@mydomain.com</loc:callParticipants>" &_

		"</loc:makeCallSession>" &_

	 "</soapenv:Body>"&_

	"</soapenv:Envelope>"

2. ACE web call invoked to join the second participant (after the first picks up). This is where I would expect the first participant to hear ringing while the second participant is called out to join the call.

	"<soapenv:Envelope xmlns:soapenv=""http://schemas.xmlsoap.org/soap/envelope/"" xmlns:loc=""http://www.csapi.org/schema/parlayx/third_party_call/v3_4/local"">"&_

	 "<soapenv:Body>"&_

		"<loc:addCallParticipant>" &_

			"<loc:callSessionIdentifier>34983498-askjfs3498-ThisiscallSessionID-43898</loc:callSessionIdentifier>"&_

			"<loc:callParticipant>984398@mydomain.com</loc:callParticipant>" &_

		"</loc:addCallParticipant>" &_

	 "</soapenv:Body>"&_

	"</soapenv:Envelope>"

I do have AMS in the picture with configuration for ANNC etc which I presume is correct because my other call flows that leverage vxml and DTMF injection work without issue.

Many thanks
Alex

It has been quite a few years since I worked with ACE, but my memory says that ACE treats this call flow somewhat like a conference bridge would, and does not 'disturb' the conference with ringback signals into the conference for outdialed parties that have not answered. Imagine having 2 parties who have answered and 3 parties still in a ringing state. Inserting ringback into the conference for the unanswered call legs would disrupt the ability for the two parties who had answered to speak with each other.

John,

Thanks very much for the prompt reply!

In the event where I am trying to accomplish the following call flow, how could I get the ring back to happen?

1. ACE invokes make call and adds participant A (no problem here)
2. ACE adds vxml as a participant (no problem here)
3. Participant A listens to vxml and presses a digit to confirm it (no problem here)
4. vxml does a data src call to a URL which triggers a wsdl for ACE to add another participant
5. ACE adds participant B (this is where participant A does not hear the ringback)
6. Participant B eventually picks up
7. Both participant A and B are on the call and can hear one another

NOTE
I also tried to modify 4 where the vxml itself would invoke a <transfer> but could only get it to work as a blind transfer (not bridged). As a blind transfer direct from vxml without doing a call back to ACE to addparticipant, no ringback is heard either.

I do understand your point about ACE treating the call as a conference so maybe I am approaching my call flow goals the wrong way? As a side note, we are in process of getting quotes for Breeze with our Avaya rep but having to solve this on ACE for the time being is ideal.

I also found the below forum post in the Breeze section which may shed some light?
https://www.devconnectprogram.com/forums/posts/list/21681.page#p152119

Again, thanks very much for your support!
Alex