Grandstream Networks, Inc. BT200 User Manual Page 14 of 33
Firmware 1.1.5.15 Last Updated: 01/2008
MAKING PHONE CALLS Handset, Speakerphone and Headset Mode
The regular Handset mode can be switched with either the Speaker mode (Hand free) or the Headset
mode, however, whenever the Headset is plugged in, Speaker mode will be switched to the Headset
mode automatically.
To Switch between Handset and Speaker/Headset, simply press the Hook Flash in the Handset cradle or
the Speaker button.
Make Calls using Numbers
There are FIVE ways to make phone calls:
• Pick up handset or press SPEAKERPHONE button, and then enter the phone numbers
• Press the SEND button directly to redial the number last called.
• Once pressed, the last dialed number will be displayed on the LCD as the corresponding DTMF
tones are played out and an outgoing call is sent.
• Browse the CALLED/CALLER history and press the SEND/REDIAL button.
• Pick up the handset or press the speakerphone button, then press the “CALLED/CALLERS”
button to browse thru the last 10 numbers dialed out. Once the desired number is identified and
displayed on the LCD screen, press the SEND button and a new call to that displayed number will
be sent out immediately.
Examples:
• To dial another extension on the same proxy, such as 1008, simply pick up handset or press
speakerphone, dial 1008 and then press the “SEND” button.
• To dial a PSTN number such as 6266667890, you might need to enter in some prefix number
followed by the phone number. Please check with your VoIP service provider to get the
information. If you phone is assigned with a PSTN-like number such as 6265556789, most likely
you just follow the rule to dial 16266667890 as if you were calling from a regular analog phone,
followed by pressing the “SEND” button.
Make Calls using IP Address
Direct IP calling allows two parties, that is, a BT200 and another VoIP Device, to talk to each other in an
ad hoc fashion without a SIP proxy. This kind of VoIP calls can be made between two parties if:
• Both BT200 phone and other VoIP Device(i.e., another IP Phone or BT200 SIP phone or other
VoIP unit) have public IP addresses, or
• Both BT200 phone and other VoIP Device are on the same LAN using private or public IP
addresses, or
• Both BT200 phone and other VoIP Device can be connected through a router using public or
private IP addresses (with necessary port forwarding or DMZ).
This model has the ability to dial an IP address under the same LAN segment by simply pressing the last
octet in the IP address.
In the Advanced Settings page there is an option "Use Quick IP-call mode", by default it is set to No.
When this option is set to YES, and #XXX is dialed, where X is 0-9 and XXX <=255, phone will make
direct IP call to aaa.bbb.ccc.XXX where aaa.bbb.ccc comes from the local IP address REGARDLESS of
subnet mask.