Grandstream DP715 IP Phone Firmware 1.0.0.33 Beta

BUG FIXES:

- Fixed no audio issue when iLBC Vocoder and iLBC frame size is set at 30ms
- Fixed SRTP call crash issue when handset "R" is pressed sometimes
- Fixed cannot change "Voice Frames per Packet" value on web UI
- Fixed channel 2 cannot return to idle status
- Fixed handset1 in Hunting Group ringing does not timeout
- Fixed setting Hunting Group to NONE does not take effect until after reboot
- Fixed Shared Line affects the other line
- Fixed device does not trigger provisioning process when using UCM ZeroConfig
- Fixed after clearing the dial plan, user can still successfully Save and Apply
- Fixed no ring back tone when "Disable Call-Waiting Caller ID" is set to “YES”
- Fixed crash issue with core dump
- Fixed [TR-069] dateTime Type typo
- Fixed device rejects SIP reply from Outbound Proxy under some conditions
- Fixed memory leak caused by overwriting MWI timer pointers without first cancelling the existing timer
- Fixed If device loses internet connection, it tries to register to secondary proxy
- Fixed in auto-dial performance test, all ports stopped working
- Fixed Attended Transfer does not work

ENHANCEMENT:

- Added option "Disable Call-Waiting Tone"
- Add support for DHCP Option 160
- Set TLSv1 protocol to be used with wget
- Added configurable RFC 3261 timer D length support
- Added support to announce the registration number via feature code
- Added support for NAT transfer feature. Added web UI option “SIP REGISTER Contact Header Uses”
- Added 911 emergency call support
- Added SYSLOG message when Registration LED goes out