keep-alive

  1. Solved Push notifications on Android

    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...
  2. Solved 3cx sends INVITE to IP phones with same From and To header

    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...