link did number -->pbxes.org-->voipcheap-->UM mobile

[Sebastian]

Originally Posted by Stu

The VOIP cheap holding company blocked access to their service from pbxes.com. Check the forum on pbxes.com.

That's correct. Voxalot.com, however, should work. Unlike pbxes, they seem to have an agreement with Betamax. Create an account there, you'll have to pay a tiny annual fee for inbound calls registered through Skypho/Eutelia, and then set up a forwarding to your UM mobile over your outbound Voipcheap account.

I use voxalot on a daily basis and can wholeheartedly recommend it.