Nat Settings - Grandstream Networks GRP261 Series Administration Manual

Call's State
Offline
Idle
Trying
Talking
Proceeding
Incoming call

NAT SETTINGS

If the devices are kept within a private network behind a firewall, we recommend using STUN Server. The following settings
are useful in the STUN Server scenario:
STUN Server
Under Settings��General Settings, enter a STUN Server IP (or FQDN) that you may have, or look up a free public STUN
Server on the internet and enter it on this field. If using Public IP, keep this field blank.
Use Random Ports
It is under Settings��General Settings. This setting depends on your network settings. When set to "Yes", it will force random
generation of both the local SIP and RTP ports. This is usually necessary when multiple GRPs are behind the same NAT. If using
a Public IP address, set this parameter to "No".
NAT Traversal
It is under Accounts X��Network Settings. The default setting is "No". Enable the device to use NAT traversal when it is
behind a firewall on a private network. Select Keep-Alive, Auto, STUN (with STUN server path configured too), or other options
according to the network setting.
BLUETOOTH
Information:
Bluetoot is available on GRP2614/GRP2615, GRP2616, GRP2624, GRP2634, GRP2670 & GRP2650 only
Bluetooth is a proprietary, open wireless technology standard for exchanging data over short distances from fixed and mobile
devices, creating personal area networks with high levels of security. GRP2614/GRP2615, GRP2616, GRP2624, GRP2634,
GRP2670 & GRP2650 support Bluetooth. On the phone, users could connect to cell phones (supporting Bluetooth) via hands-
free mode or use a Bluetooth headset for making calls.
To connect to a Bluetooth device, turn on the phone's Bluetooth radio first. The first time when using a new Bluetooth device
with the GRP2614/GRP2615, GRP2616, GRP2624, GRP2634, GRP2670 & GRP2650 "pair" the device with the phone so that
both devices know how to connect securely to each other. After that, users could simply connect to a paired device. Turn off
Bluetooth if it's not used.
Light Indication
Off (Extension Board
Icon: Off)
Off (Extension Board
Icon: Idle)
Solid Red
Solid Red
Solid Red
Flashing Red
Table 16: BLF LED Definitions
Call's State Light Indication
Off (Extension Board
Offline
Icon: Off)
Off (Extension Board
Idle
Icon: Idle)
Trying Solid Green
Talking Solid Green
Proceeding Solid Green
Incoming call Flashing Green