Siemens CX253isdn Manual De Usuario

SX303/353isdn / englisch / A31008-X353-B100-2-7619 / telephony.fm / 14.11.2005

External calls are calls using the public telephone network. Two external calls can be 

made at the same time on your base station. 

Internal calls are calls
◆ between the base station and a terminal registered on the base station.
◆ between terminals registered on the same base station.
They are toll-free. Three internal calls can be made at the same time on your base 

station.
You can either call a specific terminal or call all the other registered internal users at the 

same time ("group call").

c

Lift the receiver.

~

 

Enter the telephone number. The phone number is 

dialled.

~

 

Enter the telephone number.

c

Lift the receiver. The phone number is dialled.
End the call:

a

Replace the receiver.

i

◆ Replace the receiver to cancel dialling.
◆ If Dial handsfree is activated (page 101), you can also dial and make 

calls without lifting the receiver. Dial the number and handsfree mode 

is activated.

◆ If you have previously assigned a function key accordingly (page 114), 

you can also use that function key to dial.

◆

i

If you receive a call during an internal call or group call, the call is not 

interrupted. You will hear a call waiting tone.