How would you like to be updated if you have an open fault investigation?

[#1]

My reason for my vote in the poll, ie phone call, was because, otherwise, I would not receive any updates by the ISP 

[#2]

How about if we replied using tickets that also sent a text messages to your mobile phone?
I'm personally a fan of always updating customers with a phone call too though.

[#3]

Would be good ... if I had a mobile phone 

[#4]

Phone call of course. If your BB is down, receiving e-mail may be problematical, if your phone line is down then when it's fixed you get the phone call

[#5]

Smoke Signals...

Edit...from the canteen

[#6]

Perhaps it's worth pointing out that, at least with BT, it's possible to send a text message to a landline phone these days too - and if the phone doesn't support text, an automated voice will read out the contents.