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 Disable SIP ALG for One Way Audio & 30 Seconds Call Hang up Issue

Users might meet the SIP Call issue including: One way audio No audio in both way The call...

  How to Reset Yealink IP Phone to Factory Default

Description: How to reset Yealink IP phones to factory default. Resolution Press the "OK"...

 Yealink Phone Can’t Receive Any Incoming Calls

Description: For the end-users, sometimes the phone can’t receive any incoming calls while the...

 3CX Phone System Basic Troubleshooting

Clients with CloudOne Support Contract or Managed Service only require to contact Cloud One...

 3CX Recommended Hardware Requirement

Hardware Requirements For a list of supported operating systems, go here. “Up to 16 sim...