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22 221 02-FGB 101 327 Uen C - December 2006
4.4 DTMF Transmission
The Ericsson W25 is capable of transmitting DTMF on the radio interface
as received on the 2W-line interface using message based signaling.
It is possible to switch of the DTMF message based signaling so that DTMF
tones go through the voice code.
The Ericsson W25 supports DTMF digits 0-9 and A&B.
4.5 Emergency Calls
Emergency calls (i.e. 112 or 911) can always be made, even without a SIM
card or the correct PIN code. This also applies if the terminal is locked to
the network by a specific MCC and/or MNC or if the PIN Lock feature is
enabled.
The emergency telephone number may differ from country to country. It is
typically a three-digit number so that it can be easily remembered and
dialed quickly. Some countries have a different emergency number for each
of the different emergency services; these often differ only by the last digit.
Emergency calls have its own dial plan and multiple numbers can be
configured.