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Please refer the improvements & corrected problems.

New Features :
1. Support ISDN function.

Improvement
1. VOIP :
     Add protect function for sending caller-ID with DTMF type for the character used is non-standard.
     Add protection for SIP parser to prevent malicious UDP 5060 port attack.
     Add a telnet cmd "dtmftonepwr" for adjusting the power level of the DTMF tone sending PSTN switch.
     Support "ALL" interface in call barring.
     Support call pickup (when act as a caller).
     Improved: Danube DSP FXS on/offhook detection by using MPS driver.
     Improved: Stability for FXO Port or PSTN Port ring detection.
     Corrected: wrong RFC-2833 packet was sent out.
     Corrected: SIP SUBSCRIBE message missing "Contact" header.
     Corrected: VoIP can not change codec (driver layer).
     Corrected: when a phone call is rejected (486 message), it still plays ring back tone.
     Corrected: DND exception list malfunctioning.
     Improved: SIP/SDP parser to handle complicate SDP content.
     Improved: VOIP stability.
     Improved: scenario for SIP ALG code for SIP client on WAN side registered to SIP server on LAN side.
     Improved: Digit-Map function can use different prefix length but start with same digit rule..
     Fixed: Problem of VoIP PSTN loopthrough in Phonebook and Digit Map.

2. 3G :
     Improved: 3G reconnect stability, backup mode.
     Corrected: unable to fetch 3G signal strength response.
     Support SonyEricsson MD300 modem. Skip CSQ signal check.
     Support Sierra 885/888 modem, DET-US3G5 modem, Cmotech D-50, and D-Link DWM-652 modem.

3. Wireless :
     Set WPS client's default MAC address as 00-00-00-00-00-00 to avoid WUI display error.
     Fixed: Problem that wireless clients are unable to get IP address from DHCP.

4. Others :
     Corrected: IM-P2P can not block Vagaa application.
     Corrected: WAN2 status not compatible with syslog utility 4.X.
     Corrected: DDNS use WAN2 first fail.
     Corrected: syslog can not sent out via VPN tunnel.
     Corrected: ways of handling DNS port reply packet (a non DNS answer packet).
     Corrected: IM-P2P mail alert malfunctions.
     Improved: VPN mechanism to avoid sending unnecessary DPD echo/reply.
     Improved: FTP server (active mode upload).
     Improved: NAT loop back for SSH and FTP service.
     Improved: handle protocol equal to zero packets.
     Improved: PPTP WAN mechanism.
     Improved: telnet command for flush nat portmaps; it maybe useful for some conditions portmapsetting –f.
     Fixed: access control function can't be disabled in Wireless LAN>>Access Control.
     Fixed: authentication failed with radius server: Vasco Middleware.
     Modify daylight saving table for New Zealand.
     Make telnet Call-log related command more robust to prevent reboot.
     Rearrange the telnet command with alphabet order.

If you have further questions, please contact support@corecasys.com