I have a new discovery for #3803; about pjproject HOT 4 CLOSED

You need to stop opening a new Github issue for the same issue.
The reason you received no response so far is due to Github issue being currently for bug report only, and based on your description, there is no strong indication that this is a PJSIP issue.

if pjsua_ip_change_acc_cfg.reinvite_flags contains PJSUA_CALL_UPDATE_VIA, it should be updated accordingly. If not, you can debug into the function and find out why it's not the case.
The duration of the call (shorter or longer than 35 seconds) should be irrelevant to this case.

from pjproject.

You need to stop opening a new Github issue for the same issue. The reason you received no response so far is due to Github issue being currently for bug report only, and based on your description, there is no strong indication that this is a PJSIP issue.

if pjsua_ip_change_acc_cfg.reinvite_flags contains PJSUA_CALL_UPDATE_VIA, it should be updated accordingly. If not, you can debug into the function and find out why it's not the case. The duration of the call (shorter or longer than 35 seconds) should be irrelevant to this case.

I just modified this value in the project, and its function is only to modify the printed information in the log, but it still can not solve the problem that the call is less than 35 seconds and the two parties lose contact;

Example:

1. Do not contain this value ->> The IP address will not change in the via of the invite sent by network switching.

2. Contain this value >> Switch network when the call is less than 35 seconds; The address remains unchanged; The two sides are still out of contact
   >> Switch network when the call is longer than 35 seconds; The address has changed; Normal communication between two parties

3. I tried to modify other values; The problem of double disconnection exists

Conclusion: The modification of this value can not correct the above problems;
Would this 35-second period affect the user re-invite request? There is currently no way to fix this problem

from pjproject.

You need to stop opening a new Github issue for the same issue. The reason you received no response so far is due to Github issue being currently for bug report only, and based on your description, there is no strong indication that this is a PJSIP issue.

if pjsua_ip_change_acc_cfg.reinvite_flags contains PJSUA_CALL_UPDATE_VIA, it should be updated accordingly. If not, you can debug into the function and find out why it's not the case. The duration of the call (shorter or longer than 35 seconds) should be irrelevant to this case.

Hello, I now find that the 35-second problem is caused by one of the values

I set PJSIP_TRANSPORT_IDLE_TIMETCP to 2. In this case, I only need to hold the call for more than 2 seconds to set up a connection

Ask if there are any problems with changing this value to less than 33

from pjproject.

PJSIP_TRANSPORT_IDLE_TIME

from pjproject.