Use this guide if you are able to dial local numbers, but not International, STD or mobile numbers from your telephone service.
Confirm you have a dial tone; if not, follow the No Dial Tone Guide.
Confirm you are able to make locals calls from your service; if not, follow this guide (not a link)
Confirm the number, and dialing protocol:
It should start with 0011 + [country code] + [phone number with area code, with first 0 removed]
Example: 0011 44 723573673
What happens when you dial the number?
Does it connect? Engaged? No answer?
Is there a record voice announcement?
Note this down.
Have you ever been able to reach this number?
Test the number from another service, if you experience the exact same issue, it may be an issue on the receivers’ side.
If you can connect, or get a different error, from another service, contact iPrimus.
Contact iPrimus technical support
Next, contact iPrimus Technical Support with these details, and we will investigate this issue for you further – we will also carry out test calls on your behalf to determine where the issue lies.