Might be worth trying a different phone. My wife had an Iphone 5 and I have a Blackberry, both on Vodafone. In and around our home I always have full service, my wife with her Iphone has terrible service. It's not always the lack of coverage, more the fault of the handset.
As it happens I'm using an Acer Android phone currently. We are going on holiday next week and I am leaving my iPhone at home because I tend to just put items down and don't realise it.
The Android phone is admittedly a cheap Acer one but the reception is just as bad. I do however know where you are coming from. My iPhone 4 was better than this 5s's signal reception.
Well to argue the other side here. I use my Iphone at work as well as at home. other people have android phones and IT do encourage the use of Android. However non of the android phones work properly having to use extra apps which don't fully work while everyone on Iphone doesn't seem to have any issues.
IT are pretty useless here mind
That's pretty standard IT methods
So they encourage the use of something which they know doesnt work properly?
IT personnel have no say in what hardware to use most of the time. Bean counters dictate such things. Here, we do control the phones and we supply Windows phones to the business and they work! However you can use your iPhone or Android of which I am. I refused my work phone based on the fact I either just forwarded it to my own phone or took two out with me. So I bought my own and use that
I've learned something in life. It is not politicians that make a country work, they just act upon the three main professionals.
2) Engineers, they make the scientist discovery a reality. (my favourite)
3) Bean counters. They dictate to all others what is cheapest and often short term. Make the best use of the scientist discovery null and void in favour of a cheaper alternative. The engineer quite often never gets chance to make it reality.
Politicians make decisions based on all of the above (ideally)
So really it's bean counters that run the country, Full stop