I have been using my Vodafone number as my main business number on letterheads, websites, business cards etc. for the last 6 years or so. My main reason for opting for Vodafone instead of the only other cellular provider in New Zealand (Telecom) is because Vodafone offers international roaming.
I have travelled across Europe several times, but my latest trip in April-May-June was a disaster in terms of roaming.
GPRS worked fine... but its ridiculous cost made it my last choice - when all other methods had failed.
However my problem was more with receiving simple phone calls on my New Zealand Vodafone mobile whilst in Europe.
In most of the countries visited (France, Switzerland, Italy, Germany and Poland) roaming was either unreliable or did not work at all. When I tried to place a test call to my own Vodafone New Zealand number from a landline, I was getting either a never-ending silence, a busy tone, a recording from Telecom New Zealand (!) saying "This number is not valid" or an endless ringing tone (and my mobile did not ring). Whether I set my Ericsson T39 phone on "automatic" or selected the network manually, the result was the same.
I was able to place outgoing calls from all the countries.
I remained in touch with Vodafone New Zealand, and they could only acknowledge that there were problems; but these problems have not been solved in my 2 1/2 months stay.
Is it just me, or is it a general problem?
What can be done to improve the reliability of incoming calls? - I tried to get local SIM cards, and to divert my calls on them; and they were just as unreliable! The only reliable solution was to turn the phone off... so at least all the callers could leave a message with my voicemail... but that's not really a long-term solution.