Different Local SIP port for each SIP account on W60P

[Elaine_Yealink]

Hi SPC Support,

Answers to your question below:
1) Why Yealink has changed it?
The reason is that new machnism is following SIP standard.
2) Was there a demand from any market or any wrong behavior of previous mechanism has driven Yealink to take this step?
Some of the customers reported registration failed issue when PBX asked for a fixed registration port.
3）Is there any solution on the roadmap? Like something that do Grandstream phones as it is described below?
So far, we don't have roadmap to change this machenism.

So we'd better focus on the issue that you get from customer to see if it is caused by the fixed SIP port. I am sorry but confused with the description above. Please help to confirm:
1. The mentioned post is about registration failed issue. But I think in your case, the accounts can be registered successfully?
2. If not, what is the error for the failed registration? Please provide pcap and syslog for this.
3. What do you mean by this? The problem is cannot make calls between handsets registered to same base? Or it is the different process of transfer operation? Please explain clearly:
"The possible solution to this issue is the use of intercom. This solution is acceptable when the internal calls to SIP extensions are only between the Handsets registered to a same base. If the user wants to make a call to a handset registered in another base or another desk phone, the process for call transfer will be different. It means that in an office with some Dect phones and Desk phones, the attended call trasfer process between Dect phones to Dect phones (of same base) and Dect phones to any other phone will be different. Which is not accepted by the customer."

Regards
Elaine