Hi everyone,
On another thread, @StefanW confirmed that mobile apps do not use SIP signaling, but Push Messages. (reference here: https://www.3cx.com/community/threads/3cx-app-registration-over-udp-network-interface-for-provisioning.75840/#post-343946)
Here is a behavior that I have noticed...
Hello,
I have noticed that 3cx sends INVITE requests to my IP phones, having the phone's number in the From and To headers.
Also, there is a Content-Disposition header which includes a "signal; handling required" value.
The Message Body is xml, as seen in the attachment.
Just mentioning this in...