Missed calls when using Attended Transfer - Windows Softphone

[PhoneOnline]

We're facing the following issue while using the transfer feature in Windows Softphone (latest release)

When a call was received on the default number it gets routed to a ring group which takes the call and forwards it to the correct person, using both Attended or Blind transfer.

At 2:12 PM the person from the Ring Group (internal extension 100) receives the call and tries to forward it to me (internal extension 110) using blind transfer
I take the call and I'm able to have audio conversation in between.

Strange thing here is, I receive notification of missed call of this extension, but I did accept it.

When we perform the same test 1 hour later (3:12 PM), I don't see the missed call.

Nothing has changed in between on configuration side (you can't change config on this matter?).

Note this is occurring over the company, with Windows softphone. When using the WebClient this doesn't occur.

Environment:
3CX V16 latest (Debian)
WIndows softphone: latest

 

[VasilisV_3CX]

Hi @PhoneOnline,

Can you provide more information? https://www.3cx.com/community/threads/information-to-provide-when-requesting-help.67558/

 

[PhoneOnline]

3CX Version: 16.0.9
Server Os: Debian 9
3CX Hosted on-premise (cloud host)
IP Phones: softphone only
Prov method: 3CX App (softphone/3CX Smartphone app) only
Firewall check: N/A
Custom templates: No

 

[VasilisV_3CX]

Hi @PhoneOnline,

During the 3PM call, did you have audio on the call that was transferred or not?

 

[PhoneOnline]

Hi @PhoneOnline,

During the 3PM call, did you have audio on the call that was transferred or not?

Hi,
yes audio was received.

 

[VasilisV_3CX]

Hi @PhoneOnline,

Is your extension, 110 a part of the same ring group as 100? Is the Ring Group set to Prioritized Hunt or Ring All? Have you taken a look at the Academy training regarding Ring Groups?

 

[PhoneOnline]

Hi Vasilis,

This user is member of the Ring group and forwards to another internal extension which is not part of this Ring Group. So this seems not related to me?

 

[VasilisV_3CX]

Hi @PhoneOnline,

Is the user performing a semi-attended transfer? This would be when the call comes through to the Ring Group, the extension puts the call on hold, starts an attended transfer to your extension, then transfers before you answer?