User manual

21/1551-ASP 113 01 Uen N2 2014-01-28 75
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OLUTION ARCHITECTURE
The Aastra 340w and Aastra 342w WiFi phones Connects to MX-ONE
as any other Aastra SIP phone offering the users access to the same set
of system services as from other Aastra SIP phones.
5.4.10 CAS Extension Interface
The CAS extension interface provides a digital connection to external
equipment and provides, through PCM links, the analog extension func-
tions.
Using the CAS extension feature, different signaling systems can be
handled simultaneously, which allows connections of different external
equipment, for example, cordless phone system, digital multiplexers,
voice mail, to an MX-ONE system.
5.4.11 ISDN S0 Terminal Interface
The ISDN S0 terminal interface, also called a Basic Rate Access
(2B+D), is an interface to which ISDN terminals can be connected. An
ISDN terminal interface has two 64 kbits/s B-channels, and two equip-
ment positions are needed for one interface. The ISDN terminal interface
allows voice and data transmission on ordinary phone lines.
One or several ISDN terminal directory numbers are affiliated to an ISDN
S0 terminal interface. An ISDN terminal directory number is not affiliated
to a certain ISDN S0 terminal, but it gives an access with some specific
characteristics to or from that ISDN S0 terminal interface. There is no
support for busy state services.
5.4.12 Paging Equipment
Paging enables persons out of hearing range of their extension instru-
ment to be reached from an extension, PBX operator console or external
line. The paged person is alerted of incoming calls by activating a
portable personable radio receiver (staff locator) or signaling with a
personal code over an acoustical/optical system. Answers to paging are
mainly executed as meet-me.
There are three types of paging:
• Paging with meet-me answer only
• Paging with voice over radio and facilities for meet-me answering
• Paging with transmission of digital information to a display in the
radio receiver and facilities for meet-me answering