Hello, While trying to debug DTMF problems with some gateways I came across the following issue: The phone generates the DTMF of a certain period, but I would like the PBX to send a longer period to the gateway. Thus, I change switch.conf.xml to have *min-dtmf-duration=*80000 and at the outgoing profile toward the gateway I put *dtmf-duration=*80000; I tried large values in order to see the difference. However, wireshark stil shows much smaller duration (around 1,000). Do I understand something incorrectly? Thanks, __Yehavi: