How is my Maths ?

[murts]

I wasn't basing the calculation on constant download, it's based on the assumption that 1 traffic update is around 40k and updating every 15 minutes would be around 160K an hour.
etc.......
= £1.17 per hour (that's 4 40k downloads every 15 mins)

Anyway been down to a Vodafone shop today, they reckon from 4th June they are capping GPRS costs to £1 a day same as T-mobile.

Only problem is now I've read that the microphone for bluetooth phone functionallity is rubbish. I basically want a device that I can put in any car without attaching any extra wires/microphone that with give me SatNav/Traffic/Phone. Will the TT 510 not do this ?

[TomDavison]

As I read it, he is only taking 4 separate 40k downloads per hour. ie traffic set to update every 15 mins. Maths look good to me.

Beat me to it!!

[DennisN]

[murts]

I've tried my 2 phones in Halfords, Nokia 6822 and Motorola L6, both work fine.

Looks like the 510 is for me, just got to get Halfords to price match their online price of £229 (with promotional code)

[DennisN]

Just out of interest, on Tuesday night I activated my TT Traffic free one month trial for the TT GO700 I bought last May (yes, 2006!). I then used it for part of the day on Wednesday and part on Thursday. On both days it didn't seem to outperform BBC Radio 5 Live, the only difference being the TT option for it to automatically re-route me (which I didn't take). As usual, I did NOT RTFM, so goodness only knows how good a job I made of it. I left it at the default setting of 15 minute updates.
I got the impression that it updated more often than 15 mins, but that may have been me prodding it to display information. I didn't run it all the time I was out. I've just been on the internet to my online phone account to have a look see. Over the two days, I received a total of 25 downloads and it seems as though a download is as big as the information it contains, so the idea of a steady(ish) 40K download every 15 minutes is not the case. The smallest download I received was 2.896Kb, cost £0.006 (excluding VAT), largest 195.245Kb, cost £0.382 ex VAT. There were 15 downloads of less than 10Kb, 6 of between 20 and 30Kb, 1x52Kb, 1x75Kb, 1x79Kb and 1x195Kb. Quick (unreliable) mental arithmetic adds up the total cost of them all to about £1.30 before VAT. I'm on Vodafone monthly contract. Make of this what you will - me, I've disabled it and won't use it again.
_________________
Dennis

If it tastes good - it's fattening.

Two of them are obesiting!!

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