DrayTek has released new firmware for the Vigor 2820 series routers. These routers are suitable for passing ADSL2, ADSL2+, cable and VoIP connections. In the family include the Vigor 2820the Vigor 2820n and the Vigor 2820Vn. To download the firmware, a free registration on the DrayTek forum is required. The changelog of this release lists the following changes and improvements:
ISDN
- Corrected: Call barring failure for ISDN on-net call.
- Corrected: Ringing FXS1 & FXS2 failure for ISDN broadcast loopthrough call.
- Corrected: Four calls are in ISDN1-S0 & ISDN2-S0.If ISDN1-S0 & ISDN2-S0 hang up, the router will reboot
VoIP
- Corrected: VoIP compatibility issue with proxy server (Vodafone.sip in Germany)
- Fixed: A call hold related bug.
VPN
- Corrected: Compatibility issue with SonicWall VPN client.
- Fixed: Passthrough session was reset because of ICMP “Fragmentation needed” packet received.
- Improved: Support VPN chart in Syslog.
wireless
- Fixed: Wireless time schedule does not work.
- Fixed: New wireless client cannot connect after forcing down WLAN schedule works.
3G Connection
- Improved: Support Huawei E173
4G Connection
- Improved: Support Sierra 320U, LTE modem and so on.
TR-069
- Improved: Add TR-069 parameters for VigorACS SI in Firewall setting.
- Corrected: TR-069 configurations disappear after upgrading firmware from v3.3.5.3 to v3.3.7
Others
- Improved: Add a Telnet command to disable one of the DHCP server options (telnet command: srv dhcp primWINS).
- Improved: Remove ISDN wording on Web UI when using non-ISDN models.
| Version number | 3.3.7.1 |
| Release status | Final |
| Website | DrayTek |
| Download | |
| License type | Freeware |