Hi everyone,

I’m setting up a D-Link VoIP gateway (e.g., DVG series) to integrate with a SIP trunk provider for our small office. Could you share your expertise on:

Optimal Models: Which D-Link VoIP gateways https://serverorbit.com/network-devices/network-accessories/voip-gateway work best with SIP trunking (e.g., DVG-2101S vs. DVG-N5402SP)? Any firmware quirks to watch for?

Security: How to harden the gateway against VoIP attacks (e.g., SIPVicious scans)? Should I pair it with a D-Link firewall (like DFL-260)?

QoS: Tips for configuring QoS rules on D-Link switches (e.g., DGS-1210) to prioritize VoIP traffic over LAN.