Making a Call
D-Link DPH-300S User Manual
42
7. No audio in call
„
Port forward the appropriate ports to the phone. The phone needs ports 1720 (TCP) and ports 15328-15333 (TCP and UDP) open to
function properly. See the section
Opening Ports on Routers and Gateways
on page 58, or consult your router’s documentation or your
network administrator for help on doing this.
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