Understanding dropped calls

Dropped calls typically occur for the following reasons.

  1. Router firewall –  Firewalls are the the leading cause for drops calls.  Most routers have a service called SIP ALG. This service can cause call quality issues, dropped calls, phones not to ring, and calls to drop during a transfer.  Disable this setting for best call quality. Learn more by searching “SIP ALG” on our support page.
  2. Internet Quality – Internet quality is essential to call quality.  If you are experiencing garbled or dropped calls make sure that your internet service is at least 5mbps.  Test Here.