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Draytek Vigor2820 Firmware Annex 2121501

Draytek Vigor2820 Firmware Annex is an essential driver for Firmware, by Draytek. New Features: Support ISDN function Improvement: VOIP: Add protect function for sending caller-ID with DTMF type for the character used is non-standardAdd protection for SIP parser to prevent malicious UDP 5060 port attackAdd an enable/disable check box in VOIP ...

Run on OS:
Probably All
File type:
File size:
Updated on:
Jul 16, 2012
Check Reviews
Softmenu rating: 6/10

Draytek Vigor2820 Firmware Annex 2121501 Reviews - by Softmenu Drivers Editor

Draytek Vigor2820 Firmware Annex is a driver for computer's Firmware. With the latest version of Draytek Vigor2820 Firmware Annex, you can have your PC worked correctly or better.

Driver Description - by Publisher

Drivers Description, released by Draytek. please read it carefully before you download.

Full Drivers Description see below:

New Features: Support ISDN function Improvement: VOIP: Add protect function for sending caller-ID with DTMF type for the character used is non-standardAdd protection for SIP parser to prevent malicious UDP 5060 port attackAdd an enable/disable check box in VOIP regionalAdd a telnet cmd "dtmftonepwr" for adjusting the power level of the DTMF tone sending PSTN switchSupport "ALL" interface in call barringSupport call pickup (when act as a caller)Improved: Danube DSP FXS on/offhook detection by using MPS driverImproved: Stability for FXO Port or PSTN Port ring detectionCorrected: wrong RFC-2833 packet was sent outCorrected: SIP SUBSCRIBE message missing "Contact" headerCorrected: VoIP can not change codec (driver layer)Corrected: when a phone call is rejected (486 message), it still plays ring back toneCorrected: DND exception list malfunctioningImproved: SIP/SDP parser to handle complicate SDP content.Improved: VOIP stabilityImproved: scenario for SIP ALG code for SIP client on WAN side registered to SIP server on LAN sideImproved: Digit-Map function can use different prefix length but start with same digit rule.Fixed: Problem of VoIP PSTN loopthrough in Phonebook and Digit Map3G: Improved: 3G reconnect stability, backup modeCorrected: unable to fetch 3G signal strength responseSupport SonyEricsson MD300 modem. Skip CSQ signal checkSupport Sierra 885/888 modem, DET-US3G5 modem, Cmotech D-50, and D-Link DWM-652 modemWireless: Set WPS client's default MAC address as 00-00-00-00-00-00 to avoid WUI display errorFixed: Problem that wireless clients are unable to get IP address from DHCPOthers: Corrected: IM-P2P can not block Vagaa applicationCorrected: WAN2 status not compatible with syslog utility 4.XCorrected: DDNS use WAN2 first fail.Corrected: syslog can not sent out via VPN tunnelCorrected: ways of handling DNS port reply packet (a non DNS answer packet)Corrected: IM-P2P mail alert malfunctionsImproved: VPN mechanism to avoid sending unnecessary DPD echo/replyImproved: FTP server (active mode upload)Improved: NAT loop back for SSH and FTP serviceImproved: handle protocol equal to zero packetsImproved: PPTP WAN mechanismImproved: telnet command for flush nat portmaps; it maybe useful for some conditions portmapsetting –fFixed: access control function can't be disabled in Wireless LAN>>Access ControlFixed: authentication failed with radius server: Vasco MiddlewareModify daylight saving table for New ZealandMake telnet Call-log related command more robust to prevent rebootRearrange the telnet command with alphabet order

Supported Operating System:

Probably All

Running requirements

Need not extra requirement except the OS environments mentioned above.


Please check the license above, if this is a freeware, it will be no limitation, else it may have the days or times limitation, please read the specifications attached with the download file carefully.

Tested virus free - Draytek Vigor2820 Firmware Annex has been tested to be a safe driver on Jul 16, 2012.

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