Q: Why do I not receive any SIP messages from tyntec, despite calling my number?

A: You should:

  • Check in the Products section in my tyntec if it lists the correct IP addresses
  • Check if your firewall allows the tyntec IP addresses

Q: Why is media not being transported? Why can’t voice clients hear each other?

A: You should:

  • Check whether RTP packets via UDP reach your system and check if they are allowed in the firewall
  • Check in the SIP messages if the correct IP addresses are stated in the media