International Calling - When it does or doesn't work
Posted by Laura Ledray on 21 March 2019 12:51 PM

When International Calling Doesn't Work

1. Many countries are on the blocked list for international phone calls. Meaning, even if a phone has international calling turned on, they will not be able to call these places. See this link here from our phone company-they update this as countries are taken off and added on to the list

2. Sometimes when you try to call countries that can be called, there is a 30 second to 1 minute delay where the line is just blank before the phone starts ringing. This is normal, but it makes it seem like the call is not going to go through.

If you cannot use google hangouts or skype to call countries that are on the blocked list, then a pre-paid phone calling card will need to be purchased-these can be purchased at grocery stores, online, etc.


Sig Server - Setting up International Calling/Additional Phone Settings


  1. Go to
  2. Login with normal Augs creds
  3. On the main screen, click on the EM option that appears.
  4. On the left side, a menu will appear, click on Phones.
  5. Type in the phone extension into the Value field.
  6. Something appears, click on the TN number.
  7. Look at the knowledgebase article “Changing long distance calling options on phones (staff)”
  8. Standard for NCOS in the list in Sig Server is 3. 7 is international calling.
  9. Hit Save once the changes are made. Should be active within 15 minutes.


See which countries are eligible for international calling and what the international codes are:



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