So, I've been taking a look at something for a client and found something a little off about their server that I can't quite tell what's going on. In this case, they can dial out, but the external IVRs that they contact are not receiving the DTMF. I ran a packet capture just to be careful not to just pin it on the carrier, and I did run across one curious thing. The PBX is receiving the DTMF on the internal leg, but not sending it out on the external leg of the calls. Has anyone run into this issue before?