1. Added hairpinning support for UDP. No UI changes required
2. Corruption reboot problem
3. Using Line 1 to dial out from the FXO port caused an existing VoIP-PSTN call on the FXO port to disconnect.
4. Setting <PSTN Dialing Delay> = 0 caused a VoIP-to-PSTN call to fail
5. The unit did not recognized tha the PSTN Line was disabled and would not allow the user to invoke the IVR.