I think that simple A57 will be much better when using UM SIM than this "bells-and-whistles" featured Treo :).
As it was told on this forum, Siemens phones are rather good for UM.
Recently I bought as a spare phone an oldie C35 - it dials "directly" on UM, without using SIM menu. My sister has an AX75 which works perfectly with UM, too.

Oatmeallover did not say what phone he had. I was only saying that my treo had problems dialing out -- as a possibility for the source of his seeming problem dialing out. My Nokia(s) and Motos never had dialing issues.

Often the simplest phones are the best for UM and the like.

Stan

Yes, I know that it was you who had problems with Treo - just put together my thoughts in a (too) compact form :).

As to simplicity, funny enough that among phones (all rather simple) possesed by me and members of my family, only Siemenses are fully compatible with UM. Menu based dialing is required for: Nokia 3310, Moto T205, Trium Eclipse and some Samsung. Not a real problem however :)

My UPDATE:

We have been using the phone in Amsterdam and Berlin now and no problems. CBW 800 pindest has been great and easy for US callers to contact us.

only hiccup is with the phone accidently turning off by itself. but other than, anyone going to multiple countries in europe and has the patience to figure out this system out, its A++ especially with its competitive pricing.


Thank to everyone for weiging in.

I have a new issue....my UM card says i have 1 euro left on it..how could I be eating up these minutes? i am using CBW

Why don't you call their customer support.

I sold someone HERE and ECOWORLD Riiing knock-off and he gave the card to his parents. He also complained about low balance to me. What am I to do?

Call or email their customer support.

Stan

TOO LATE NOW!

Opening hours
Monday to Friday, 8.00 am to 6.00 pm (Central European Time)

Our service center is closed on official holidays.


Hotline
From your United Mobile phone dial: 094
From any other phone dial: +423 663 099 911


Online
Email: customer.service@united-mobile.com

Did you call voicemail? That is NOT free. Some other utilities are also not free.

Just an idea.

Also, good idea to check the balance FREQUENTLY. at this point after each call!

I am concerned cuz I too am heading to EU soon.

Stan