This is my setup:
PBX_A--E1R2--Cisco GW--WAN--Cisco GW--E1R2--PBX_B
PBX_A made a call to PBX_B, if the extension is engaged, no busy/engage tone is heard on PBX_A.
I have the following 2 commands for both Cisco GW:
voice call convert-discpi-to-prog
voice rtp send-recv
Kindly advice what might be the possible solutions.
Thanks and best regards.