Firmware 4.0.250 (2015-09-03)

[Chris Helbing]

Health Page (new Web UI)
INFO

• New design enabled by default
• Old UI is reachable on port 8080
• Default can be changed

FEATURE

• Support https
• Detailed license information
• Display elapsed time of active calls

Fax (T.30/T.38)
FEATURE

• Send calling tone in T.38 mode (to reach multifunction devices with fax detection)
• Resend DIS on CRP ("command repeat" - optional T.30 command)
• Accept TCF (training check) without T4-non-ecm-sig-end (tolerate Misbehavior of Unify/HiPath)
• Cisco T.38 gateway: optimize T.38 transmit timing
• Optimizations in handling some T.38 details
• CED Signalling via T.38

BUGFIX

• When waiting for TCF do not interpret no-signal as TCF error if not yet in high speed mode
• Increase TCF timeout in T.30/T.38 (especially for HiPath)
• After PPR in T.38 mode we did not always switch to high-speed mode
• Handle t38 session reinvite for session refresh
• Send T.38 V.21 data in single byte blocks for better compatibility with Colt Trunk/Sonus SBC
• Several corrections in T.38 fax gateway

SIP
FEATURE

• Generate ringback tone until packets arriving from rtp
• Ignore messages < 8 bytes on udp

BUGFIX

• SIP parsing: Ignore spurious TLS header signaled to SIP stack which caused misinterpretaion of next SIP message.
• Grandstream ATA:
  • REFER with Replaces header fixed
  • Error with call transfers fixed
• No ringback tone if SDP in 180 ringing is available but no data coming via RTP
• No ringback tone if external call from to Lync was forwarded to other Lync user
• Support VIA change in UPDATE
• CallingName superseeds diversionName
• Clear record route on reinvite (T.38 with Avaya)
• Error assembling TCP segmented messages
• Early Media
  • Fix for no early media stream if there is a progress in REFER
  • Decryption failure on multiple early media streams
• a=sendrecv didn't work after a=inactive

ISDN
FEATURE

• Log level changes are activated without restart

BUGFIX

• Crash on unregister ISDN connection
• Call proceeding added for simulation in ISDN to ISDN
• Support for RESTART "storm" - If PBX sends many RESTARTS with channel info not all of them have been acknowledged.
• Changing log levels (Layer 1-4) might crash ISDN process
• IRQ handling changed to avoid "unhandled IRQs" message

Other areas
INFO

• Optimizations for OfficeMaster Gate Advanced R2 including new FPGA version
• New Echo Canceler - better cancellation with less CPU overhead!
• New OMG boot theme
• Licensing: by default only E1 is allowed on PRI, T1 can be enabled separately

FEATURE

• Call deflection support in drop & insert scenarios
• Support for INVITE with REPLACES header from Alcatel OmniPCX Enterprise
• Firewall (IPTables): Allow https (443)
• Higher amplitude in V.21 modem mode
• Info about packet loss or reordered packets

BUGFIX

• Routing behavior:
  
  • Crash if nothing matches for SIP to ISDN routing
  • Failover Routing didn't try second server on 503
  • Also check number match on blocked rules if IP address is given
    
• SMS via PSTN: Decode UC-2 (16 bit) characters (occurs when emoticons are used)