Very occasionally, you may experience calls on your VoIP phone that look as though you have called yourself from an extension you don't recognise, or have come from a number that doesn’t look real. Sometimes these calls can present like an ordinary call as well, but you can't see them in your dashboard.
These are known as Ghost Calls & are unfortunately a well-known problem in VoIP; they're very similar to autodiallers on a regular analogue line. They have nothing to do with your provider or your equipment, they're just extremely annoying when they become regular!
There are a couple of ways to stop Ghost Calls coming through, depending on which phone you have:
- Changing the SIP Port - Most sip ports are set to 5060 by default so by changing this port to another e.g 6085, means the Ghost Calls won't be able to get through so regularly
- A lot of phones will have a setting to disable these direct IP calls - there are links to the various FAQs below
If you’re having trouble with Ghost Calls, we have plenty of FAQs showing you how to disable them below:
- Grandstream 16x and 21xx series IP phones
- Grandstream HT Adaptors
- Yealink W52P
- Yealink T48G
- ObIHAI 10XX Series
Of course, if you continue to have issues you can contact our friendly support team!