Mobile Phone Mode; Figure 4 Gac2500 Cascade Mode Screen - Grandstream Networks GAC2500 User Manual

4. The screen is as shown below. Tap on "Yes" on the first device and set it to be the master while the
other the slave.
Note:
1. It is recommended to use cascade mode in room 7.2m*12.2m or smaller.
2. Please keep a distance of 5m between two devices.
3. Please make sure the master device is connected to the network or it may not work properly.
4. The slave device will synchronize with the master device and their dial screens will be shown
synchronously.

MOBILE PHONE MODE

GAC2500 could be connected to mobile phone for expanded use. Please follow the steps to connect.
1. Connect the LAN port of the device to the external network port (the port in the office or at home) via
Ethernet cable;
2. Plug in the power adapter into the power supply interface then power up the GAC2500;
3. Connect one end of the via 3.5mm audio aux cable to 3.5mm headset interface on the mobile phone
first, then connect the other end to 3.5mm audio interface on GAC2500, once connected, it will
access 3.5mm AUX call screen;
If the audio quality is not good, it may be the line sequence issue, you can hold the screen at the top of
the status bar, drag and drop down to open the status bar, tap on line sequence notifications and select
the line sequence the same as the one of 3.5mm headset interface on the mobile phone.
Firmware Version 1.0.1.34

Figure 4 GAC2500 Cascade Mode Screen

GVC2500 User Guide Page 19 of 105