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Caller-id after attended transfer not working properly on T19P/T41P
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ddyx Offline
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Post: #3
RE: Caller-id after attended transfer not working properly on T19P/T41P
First, thanks for the answer.

The documentation clearly states that it is ONLY for the INVITE request, and since it doesn't even mention reINVITEs, it can be assumed that it is just for the initial INVITE. In other words, the purpose of this parameter doesn't seem to be for the use in attended transfers scenarios, it is just another way to specify the caller details to the callee. The documentation says:

Quote:Caller ID source = PAI-FROM
1) The IP phone checks Privacy: id header preferentially, if there is a Privacy: id in the INVITE
request, the caller identification information will be hidden and the IP phone LCD screen
presents anonymous.
2) If there is not any Privacy: id header in the INVITE request, the IP phone checks and
presents the caller identification from the P-Preferred-Identity header.
3) If there is not P-Preferred-Identity header in the INVITE request, the IP phone checks and
presents the caller identification from the P-Asserted-Identity header.
4) If there is not P-Asserted-Identity header in the INVITE request, the IP phone presents the
caller identification derived from the FROM header.

According to Yealink answers on other forum threads, the parameter refresh_remote_pid is the one that should handle transfers, but it doesn't seem to be on the available firmwares and it's not documented.
02-01-2018 10:39 AM
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RE: Caller-id after attended transfer not working properly on T19P/T41P - ddyx - 02-01-2018 10:39 AM

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