Outbound Ringing

Asterisk: 13.7.2

We have a Freepbx box with a SIP trunk for our outbound route. When using the callback module, we are hearing increased reports of the phone only ringing twice, causing users to miss the callback. When they get the callback it sends them to an IVR. Is there a setting (GUI or extension override conf) I could look at adjusting to help mitigate the issue?

Thanks for any insights you might have!

Increasing the call setup time resolved this.

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