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Unable to Make Calls in 8x8 Work for Desktop After Update

Symptom

After updating to 8x8 Work for Desktop, you see an error that reads, "Connecting to Phone Service" and "Unable to Connect to Phone Service." Users are unable to make or receive calls in 8x8 Work for Desktop after updating.

Applies To

  • 8x8 Work for Desktop

Resolution

Log in to the web GUI for your router and ensure that TCP ports 5196-5199 are not blocked on the firewall.

Cause

A change was made to the signaling ports that 8x8 Work for Desktop uses.