System information

221 02-FGB 101 544 Uen A – September 2008 31
6.3.4 Emergency Calls
Emergency calls have its own dial plan and multiple numbers can be
configured.
It is possible to place an emergency call (e.g. 112) without having to enter a
PIN code, when the PIN lock feature is enabled, without a SIM card present
in the unit, or if the device is locked to the network by a specific MCC
and/or MNC. This ensures emergency calls will always be established
regardless of the configuration of the Ericsson W35.
Emergency numbers are handled as follows:
• 112 and 911 are always available (hard coded) and do not
depend on the defined dial plan.
• If a SIM card is present, emergency number from the dial plan are
also used.
• If no SIM card is present, the numbers 000, 08, 110, 999, 118 and
119 are also handled as emergency numbers.
6.4 Supplementary Services
The UMTS/GSM supplementary service codes (e.g. #67# etc) can be
configured with any service code in order to have the same service codes
as in a fixed network.
Supplementary services can only be used with a DTMF telephone
connected to the Ericsson W35.
The following subsections describe the supplementary services currently
supported.
6.4.1 Call Waiting
This service enables the caller to be notified of an incoming call during a
conversation. The subscriber can then answer, reject, or ignore the
incoming call.
6.4.2 Call Management with R-codes
This service enables the caller to interrupt an active call (placing the caller
on hold), make a new call and then subsequently, switch between the old
and new call. It is also possible to release either of the calls, putting all
three in a conference call or “break up” a conference call into two separate
calls again.
6.4.3 CLIR
The CLIR (Calling Line Identification Restriction) service enables a calling
party to prevent presentation of his telephone number to the called party.
The network operator can configure the default CLIR service state for a
specific subscriber to be either always restricted, temporary restricted or
temporary allowed.