Karel NT421 Technical Reference And User's Manual - page 21

NT42I Technical Reference and User Guide 

14

SIP Register 

This option must be “Enable” to make conversations over SIP server or IP PBX. When user 

registered to server, s/he can make connections with analog and digital extensions and use 

services that server supports.  

If this option is selected as “Disable”, user of NT42I can only make IP – IP conversations.  

SIP Register Choice 

User can choose to select SIP server automatically or manually. If it is selected as 

“automatic”, telephone will try to register one of these SIP servers. If it is selected as 

“manual”, telephone will try to register one of SIP server which is chosen by user. 

Server Choice 

The SIP server, which user wants to activate, is chosen from this part. User should mark SIP 

server which s/he wants to use. 

X.Server IP 

This part is used for defining 3 different SIP servers or IP PBX’s or URL. 

X.Server Port 

This part is used for entering port number of SIP Server. Default value is 5060. 

User ID 

This part is used for entering user’s account information. 

Service ID 

This part is used for entering SIP Service ID. 

Password 

This part is used for entering SIP Password. 

User Name 

This part is used for entering the name which will be shown at the LCD screen of NT42I 

telephone set. 

SIP Port 

This part is used for entering the port number which telephone will use for SIP 

communications. This number may be between 1024 and 65535. Default value is 5060. 

RTP Port 

This is used for sending and receiving RTP. This number may be between 1024 and 65535. 

Default value is 4000. 

Register End  

At this part the value of time is selected. This time shows the intervals (in seconds) to send 

“Register”

to SIP Server. Minimum is 10 sec. and maximum is 65535 sec. Default value is 60 

sec. 

Keep Alive 

“Keep alive” shows the time that in how many seconds telephone will send empty UDP to 

SIP server again. Default value is 20 seconds. 

DTMF Mode 

This part is used for defining the way how DTMF digits will be sent. There are 3 different way 

to send DTMF.