Locking account to specific TCP/TLS transport will cause registration loop (thanks Tony Million for the report)

[bennylp]

When PJSUA-LIB account is locked to a specific TCP or TLS transport, re-registration will occur in a loop. This happens because when specific transport is requested, TCP/TLS listener will always create a new transport for each registration request, and PJSUA-LIB will keep detecting IP address changed for the account, causing continuous reregistration.

Note:

while the issue occurs in PJSUA-LIB, the bug is in PJSIP because it keeps creating new transport.