display transferer and transferee when a call is transfered

S-Series now have one option where you can set it to Auto and the system would first show the transferor number and after transfer, the tranferee number.

check two two settings on SIP setting page: 

Attended Transfer Caller ID: auto

Send Remote Party ID

I have tested this setting but it doesnt work on our Yealink T46S/T41P phones (latest firmware version 66.81.188.7) en the U50 has also the latest version.

Maybe we have set something in the Yealink phones.

 

the pbx does send the SIP  RPID and PAI messages:

<--- Transmitting SIP request (1261 bytes) to UDP:192.168.55.67:5060 --->
INVITE sip:1003@192.168.55.67:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.55.151:5060;rport;branch=z9hG4bKPjf1e6f627-0d4f-4903-a41e-ac89eb3d4dc6
From: "+31655148614" <sip:+31655148614@192.168.55.151>;tag=cd372942-087c-458b-90ce-025d943cf097
To: <sip:1003@192.168.55.67>;tag=289582619
Contact: <sip:unknown@192.168.55.151:5060>
Call-ID: 2b7454e6-99e5-4743-84ac-ab5201ac75be
CSeq: 30640 INVITE
Allow: OPTIONS, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, UPDATE, REFER, REGISTER, MESSAGE
Supported: timer, replaces, norefersub
Session-Expires: 1800
Min-SE: 90
P-Asserted-Identity: "+31655148614" <sip:+31655148614@192.168.55.151>
Remote-Party-ID: "+31655148614" <sip:+31655148614@192.168.55.151>;privacy=off;screen=no
Max-Forwards: 70
User-Agent: yeastar
Content-Type: application/sdp
Content-Length:   434


"+31655148614" is the original caller

what settings are needed in the phones