How to register a sipgate account on the Draytek 2820vn

[Deathlok]

This problem drove me nuts for several weeks after I first got this device. Sipgate and Draytek did not have a solution between them. Eventually I solved the problem myself. Details of the solution follow

On your Draytek router do the following;
1) Nat settings: Add a UDP forward on port 5060 to port 5060 and send it to the internal IP address of your router

2) Set up your sipgate account as follows

VOIP >> SIP Accounts and into Index 1 (assuming this is the first account)
Profile name: Whatever you want
Register via: Auto
SIP port: 5060
Domain/Realm: sipgate.co.uk
Proxy: 217.10.79.23 (do not use the FQDN it will not work, trust me!)
Display Name: Whatever you want
Account number/Name: Sipgate account number
Check the box for authentication ID
Authentication ID: Sipgate account number
Password: Your sipgate account number password
Expiry time: 10 minutes
NAT Traversal: None
Ring port: Check the box which corresponds to which port you plugged your BT plug into
Ring pattern: Whatever you want

3) VoIP >> Phone Settings

Select "Symmetric RTP"
RTP Port start: 16384
RTP Port end: 16482
RTP TOS: IP Precedence 5
Phone1 settings (under index 1)
SIP URL: your_sipgate_number@sipgate.co.uk:5060
Enable Call waiting and Call Transfer
Codec: G.711A
Packet size 20ms
Select "play dial tone only when account registered" (handy for knowing if you are registered when you pick up the phone to make a call)
Click the "Advanced" button
Tone Settings: UK
Caller ID type: FSK_ETSI(UK)
DTMF Mode: SIP INFO (nortel format)

Hopefully this will work for you.