System information

28 221 02-FGB 101 544 Uen A - September 2008
6 Voice Services (W35 only)
The Ericsson W35 provides voice services via the telephony line interface
with high speech quality.
6.1 National Profiles
Country specific settings for the telephony services (based on the SIM
card’s MCC) can automatically be loaded when the Ericsson W25 is
started. These settings include parameters for the POTS interface (i.e.
impedance, ringing signals, cadence, levels etc), CLIP service
configuration, and settings for supplementary services.
National profiles for the following countries are currently supported:
• Austria (AT)
• Australia (AU)
• Spain (ES)
• Hungary (HU)
• New Zealand (NZ)
• Sweden (SE)
• United Kingdom (UK)
• United States (US).
6.2 General Telephony Features
The following subsections describe telephony related features that can be
customized in the Ericsson W35:
6.2.1 Inter Digit Timer
The Inter Digit Timer (IDT) specifies the duration the Ericsson W35 waits to
detect the next digit when dialing. After this period, no more digits are
expected to arrive and an attempt to establish the call is done.
6.2.2 Dial Tone Timeout
The dial tone timeout specifies for how long the system will wait for the
caller to input the first digit after going off-hook.
6.2.3 Congestion Tone Timeout
The congestion tone timeout determines for how long a congestion tone is
to be played.
6.2.4 Local Ringing Timeout
The local ringing timeout specifies the maximum time a call will attempt to
connect if the B-Party does not answer.
6.2.5 DTMF Duration
This setting determines the DTMF digit signal duration for the regenerated
DTMF signals from the network side towards the POTS port.