User's Manual

Call 24ard
5.2.4.3 IP call
The user can choose to make IP dialing. After the user selects the “IP call” option, the
Handset will automatically add the preset IP special service number before the telephone number
(if the former several digits are the IP special number, the Handset can recognize it, avoiding to
add repeated numbers), and make IP dialing.
The premise of IP dialing is to input an IP special service number into the IP special service
number screen in Phonebook menu. The input principle is: the IP special service number must be
consistent with the IP special service number provided by the telecom operator who has provided
the SIM card (for example, if the Handset uses a SIM card number provided by China Telecom,
then the IP special service number may be 17951 (currently); for a SIM card number provided by
China Unicom, the IP special service number may be 17911 (currently). The user also can input an
IP number provided by a telecom operator who has business relation with the registered operator).
Thus, once an IP number is input, then the user will be able to select “IP call” to use this function.
If the user has not input an IP special service number before, when he selects “IP call”, the system
will open a number editor and require the user to input an IP number
An exception: If an input or selected telephone number equals to or is less than four digits,
then even after selecting “IP call”, the IP special number will never be automatically added before
the telephone number, and the original number will be used to launch the call.
Once a call is established, its process is the same with “Outgoing calls”. But IP dialing
animation is different from common dialing animation.