I have a Deco X4300 mesh home network.  It works great except for one major item.  WiFi calling does not appear to work.  Dropped calls and distorted audio is common.  We have Samsung S22+ phones.  Spectrum is our internet carier and Spectrum supposedly supports WiFi callilng.  Our Verizon signal is terrible so WiFi calling is essential.  A TP-Link told me to set up both phones as High Priority.  That did not help.  Then I got a link for port forwarding, a vague description of steps to follow.  Immediate questions are what protocol is used in the "rule" and what port numbers are used for WiFi calling?  What other steps are needed?  Or is there a better way to accomplish WiFi calling?