Cannot connect calls through VoIP provider

[LeonB]

Hello,

Since today I've an odd problem with all the vox accounts I've created overtime.
When trying to setup a call through voipbuster or webbcalldirect I always get the message "We're sorry, the number you've called could not be connected, please try again"
When calling voxalot <-> voxalot it works fine.
Incoming call over registered SIP accounts works fine also.
When using the Voipbuster application to make a test call it works also fine.
Can't see anything strange in the accounts.
All the dialplans are unchanged for long and worked like a charme.
I can't figure out what the problem is.

Some of my relatives use and depend on the availablilty of Voxalot!

Can you help me asap?

Regards, Léon