I have a number of situations where in the past I would get a native bridge, IAX to IAX - e.g., call coming in on an IAX VOIP line being forwarded to PSTN via another IAX termination provider, or calls made from my IAXY to a PSTN number via my Asterisk box to a VOIP provider. I find the native bridge desirable because it removes at least one hop from the call. For the last few week, no native bridging under any circumstances. I get a message on the console that "attempting native bridge", then a message that it is "unable to transfer. I don't believe that I have made any changes that should have cause this, and, in particular, I haven't added any "notransfer" statements. Any ideas?