i had at&t serving me 4 years.when i tried to get another provider, i choose vonage they gave a better price.vonage goes in my shop through the internet, when at&tlearnt i moved to vonage, they disconnected my internet without any notice, then i tried to get anthor to internet provider at&twas the only one. In my area because they bought the area i was in from all the other companies.my buisness is a hair salon we depend on the phone for appointements.they got my internet disconnected so my phones, it took them a week to reconnect me i lost so much buisness.it was the hardest time ever.