We are are currently having issues with receiving incoming calls to our main support number.
We have reported that to our providers and we are expecting resolution soon.
We can still be contacted by creating a ticket here:
http://swiftinter.net/helpdesk/
Alternatively please email support@swiftinter.net if you require help.
Sorry for any inconvenience caused.
Swift Internet NOC 
Incoming calls have now returned to normal. The issue appears to have been with our upstream telecoms provider.