Stuck in a one year contract with this appalling service. I'd rather wear thumb screws. The mobile App doesn't work properly, I can't even get our extensions to transfer successfully to between one other. For example, if I go on holiday and need to port my call to the mainline, it doesn't work. The call just disappears into an abyss or goes straight to answer service. Poor connections with echoes - the whole thing is really bad for business. I do not recommend this service. The support line is hopeless - kept on the phone for up to an hour at a time and still don't get things working properly. A complete waste of valuable time.