How would I change the DTMF tone duration that FreePBX is generating when using SIP Info from the default of 100ms to say 200ms? We are using FreePBX to send a "**"code to a remote relay and that relay has a default tone duration of 40ms. Its suffering from dtmf talk off / falsing and we are going to reprogram them to a higher min dtmf duration and I wondered if FreePBX could send SIP Info DTMF tones of longer than 100ms so that we could set the relays to say 200ms minimum duration.
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