Friday 29 December 2006

voIP settings for UK Linksys/Sipura routers


I bought the wireless Linksys WRT54GP2 router (similar to the PAP2) about a year ago from Broadbandstuff.co.uk, and it has worked pretty well. I use it with my Sipgate SIP account, which gives me a free UK landline number.

This is pretty cool because I can have a London 0207 number for free, which rings my voIP phone when anyone calls it, no matter where in the world I happen to be.

For example, I could be sitting in Spain and my phone can ring on my London number, without costing me or the caller any more than if my BT landline at home just rang.

You can test it out with a software-based virtual phone you can download to your computer (Mac/Linux/Windoze) before you fork out hard cash for a router and plug that it into a real phone, but frankly this beats the hell out of any dorky computer-based solution like skype or gizmo, since you just use a normal phone.

The thing about the Linksys routers is that they are quite powerful and relatively reliable, plus you can usually hack/replace the Linksys firmware with various other third-party versions that do stuff like run a small Linux distro on it - useful if you'd like to log in remotely and do something apart from create security holes on your network.

Even if you just follow the Linksys firmware updates, usually there are quite a few new features coming out for them (e.g. wireless repeater mode in the WAP54G series) which. It took me a bit of tweaking to get the two phone ports working with a UK phone, and so I thought I might send you some notes, which you may want to try and/or print out and include with future shipments to other customers.


BASIC SETTINGS FOR SIPGATE.CO.UK


This should be similar for any of the many SIP services anywhere in the world.

Log into the device, as it says from the accompanying documantation, login as admin on the router's IP address (e.g. http://192.168.0.1) and change tabs to "Basic View".

Under the entry "Line 1" input the following information:
Line Enable "YES" SIP Port: 5060 Proxy: sipgate.co.uk Make Call Without Reg "NO" Make Call Without Reg "NO" Register "YES" Register Expires: 3600 Display Name: Your Name Password: Your SIP-Password Auth ID: Your SIP-ID User ID: Your SIP-ID Use Auth ID: "YES"


MAKING IT UNDERSTAND UK PHONE TONES


This is essential for all SIP (voIP) services with a UK phone plugged in, otherwise it won't even understand the numbers dialed on the keypad (and will make American ring tones etc).

  1. There is a secret (undocumented) access page for these settings, use your router's IP address (e.g. 192.168.0.1) and add /Voice_adminPage.htm e.g.:
    http://router/Voice_adminPage.htm
  2. The device will be configured for the US telecom system out of the box. This means that phones using this device will act have to be US phones unless we make some changes in the settings. This guide should work for most Linksys and Sipura devices.
    United Kingdom Regional Settings:

    Dial tone: 350@-19,440@-22;10(*/0/1+2)
    Ring back: 400@-20,450@-20;*(.4/.2/1+2,.4/2/1+2)
    Busy tone: 400@-20;10(.375/.375/1)
    Reorder tone: 400@-20;10(*/0/1)
    SIT 1 tone: 950@-16,1400@-16,1800@-16;20(.330/0/1,.330/0/2,.330/0/3,0/1/0)
    MWI dial tone: 350@-19,440@-22;10(.75/.75/1+2)
    CWT1 cadence: 30(.1/2)
    CWT2 cadence: 30(.25/.25,.25/.25,.25/5)
    CWT frequency: 400@-10
    Ring 1 cadence: 60(.4/.2,.4/2)
    Ring 2 cadence (BT Call Sign): 60(1/2)
    Ring 3 cadence (BT Ring Back): 60(.25/.25,.25/.25,.25/1.75)
    Ring 4 cadence: 60(.4/.8)
    Ring 5 cadence: 60(2/4)
    Time Zone: GMT
    FXS Port Impedance: 370+620||310nF
    Caller ID Method: ETSI FSK With PR(UK)
    Daylight Saving Rule: start=3/-1/7/2:0:0;end=10/-1/7/2:0:0;save=1:0:0
  3. Now you should be able to plug in a UK phone and have it understand the numbers dialed.

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