Troubleshooting Articles
Answers to common VoIP and Hosted PBX problems
- 3CX Suddenly Loses SIP Trunk Registration
- Calls dropping after 30 seconds on NEC PBX
- Can't Receive Incoming Calls
- Cannot connect over Optus 4G
- Cant make outbound calls on Grandstream handsets
- Cisco SPA112 and SPA122 - Retrieving the Base IP Address
- Conducting a Packet Capture on Yealink
- Deactivating iMessage
- Error 503 / Server Unavailable / Could Not Connect to Server
- Error Code 5xx
- Ghost Calls
- Grandstream DP752 - Retrieving the Base IP Address
- Internet Service Providers Blocking SIP
- Known Incompatible Routers
- NAT Issues
- Running an MTR
- SIP ALG
- Virtual Fax Troubleshooting
- Yealink Cordless Phones - Only One or No Phones Ringing
- Yealink W60 / W52 / W56 Cordless Phones - How to get the Base IP address