[FLEX/ATP] Why I cannot use VoWiFi?

Zyxel_Melen
Zyxel_Melen Posts: 2,567  Zyxel Employee
Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate
edited August 26 in Other Topics

Please check:

  1. Do you block these service ports in the security policy? UDP 500, UDP 4500, and UDP 16384 - 49327. If yes, please allow these ports and check if VoWiFi is available.
  2. Do you enable ALG service? If yes, please disable it and check if VoWiFi is available.
  3. Is there any blocking log?

If you still have a problem, please ask in the security category, and our support team will assist you.

Zyxel Melen


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