It should dave the last number used.
Sr. Director - Innovation Architects
Original Message:
Sent: 10-28-2023 21:32
From: Roddy Ryan Bernasor
Subject: Calling on behalf of a Group
Hi Robert,
thanks, this is great. the only concern when i tried it, is the user has to key in the caller id she wants to display when using this plug in :-)
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Roddy Ryan Bernasor
Tecnomic Systems Pte ltd
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Original Message:
Sent: 10-28-2023 20:51
From: Robert Wakefield-Carl
Subject: Calling on behalf of a Group
Yeah, sorry but no. There is no feature to call on behalf of a group and you can't assign that to multiple people. Didn't realize you talking about Communicate users. If you use the Genesys Cloud for Chrome plug-in for Edge or Chrome, you can specify and outbound caller ID. That can be used for Communicate users and would allow what you want.
Configure the Genesys Cloud browser extensions - Genesys Cloud Resource Center (mypurecloud.com)
Check this box in the configuration: 
Here is what the user would change their OLI or outbound caller id:

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Robert Wakefield-Carl
ttec Digital
Sr. Director - Innovation Architects
Robert.WC@ttecdigital.com
https://www.ttecDigital.com
https://RobertWC.Blogspot.com
Original Message:
Sent: 10-28-2023 20:28
From: Roddy Ryan Bernasor
Subject: Calling on behalf of a Group
Hi Robert,
thanks for the inputs.
they are both in communicate licenses... what do you mean (you could make that the same number for both) ? thanks
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Roddy Ryan Bernasor
Tecnomic Systems Pte ltd
Original Message:
Sent: 10-28-2023 19:01
From: Robert Wakefield-Carl
Subject: Calling on behalf of a Group
No, currently only on behalf of a queue, but you could make that the same number for both. They can choose the queue on the outbound.
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Robert Wakefield-Carl
ttec Digital
Sr. Director - Innovation Architects
Robert.WC@ttecdigital.com
https://www.ttecDigital.com
https://RobertWC.Blogspot.com