Forbidden Call

Hi, We are having a problem with our setup, outbound not working and we got a forbidden in ip phone screen.

Here is the device and scenario.

  • S50 Branch (
  • S100 Main (
  • TG400 ( with VLAN 


  • S100 caller can make outside call via TG400.
  • S50 caller cannot make outside call via TG400

Both S100 and S50 have similar outbound routes for TG400, both show a check mark in PBX monitor trunks, both ping-able.


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