Grandstream Networks GXP-2000 User Manual page 15

Enterprise ip phone

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GXP-2000 User Manual

• Once pressed, the dialed number will be displayed on the LCD as the

corresponding DTMF tone played out.

• If the "SEND" button is not pressed, the phone will wait for about 5 seconds

before initiating the call.

4.3.4 Making Calls using IP Address

Direct IP calling allows two phones to talk to each other in an ad hoc fashion without a

SIP proxy. VoIP calls can be made between two phones if

• both phones have public IP addresses, or

• both phones are on a same LAN using private or public IP addresses, or

• both phones can be connected through a router using public or private IP

addresses.

To make a direct IP calling, first pick up the phone or turn on the speakerphone, then

press "Menu" button followed by the 12-digit target IP address. If there is a user part,

press "Menu" button and then the encoded user part, followed by *3 (encoding for "@")

and then followed by the 12-digit target IP address. Destination ports can also be

specified using *4 (encoding for ":") followed by the encoded port number.

The follow is a table of the encoding scheme for the most commonly used characters:

Input

. (dot character)

_ (underscore character)

- (hyphen character)

: (column character)

Encoding

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