Grandstream Networks GRP2616 Configuration Guide

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Configuring GRP261X Devices with 3CX Phone System
Figure 3: 3CX Add Phone Interface
4. In the next dialog select the Vendor/Model of the phone and enter the device’s MAC address.
Figure 4: 3CX Phone Provisioning Interface
5. Set the “Provisioning Method” to “Direct SIP (Stun - Remote)” and click “OK.”
Figure 5: 3CX Event Log

Grandstream Networks GRP2616 Specifications

General

Brand	Grandstream Networks
Model	GRP2616
Category	IP Phone
Language	English