SX4e TDMA 800
•
SX4e Tri-Mode
10
Technical Manual
Caller ID
The Phonecell SX4e sends information to an external Caller ID device to allow presentation of the
calling party's telephone number, if this service is available from the network. Caller ID boxes in
compliance with ETSI 300 659 or Bellcore GR-30-CORE standards are supported. Only type 1 (on-
hook) presentation is supported. Because there is no source of date and time available to the FWT,
the displayed date and time will be arbitrary.
Three Caller ID message formats are available to satisfy the requirements of currently available
Caller ID devices:
• Multiple Data Message Format (MDMF) with blank date and time fields (this selection will work for
most currently available caller ID devices).
• Multiple Data Message Format (MDMF) with date and time information fixed at midnight, January 1.
• Single Data Message Format (SDMF) with date and time information fixed at midnight, January 1
Contact your service provider to activate Caller ID.
FAX AND DATA TRANSMISSION
Fax and Data Applications
When considering using a device other than a telephone in conjunction with the Phonecell SX4e
(such as a modem), consider if that device would plug directly into the Fax jack on the premise and
work with a normal telephone line. If the answer is 'yes', you can use that device with the Phonecell
SX4e; if the answer is 'no', that device will most likely not work in this application.
Multi-extension installations - For a multi-extension installation, make sure that all the extensions are
on-hook. If one extension is off-hook (not hung up), none of the extensions on that line will ring
when a call is being received.
Facsimile Machines
A facsimile machine needs to be connected exactly as it needs to be configured for use on a regular
wired telephone company line. Some models of portable facsimile machines require an external
telephone for normal operation. These models still need this external telephone when hooked up to
the Phonecell SX4e. A splitter may be required.
Fax and Data Transmission Overview
The Phonecell SX4e operates on TDMA 800 MHz and PCS 1900 MHz digital networks and on
AMPS 800 MHz analog networks. Because most TDMA and PCS networks do not support digital fax
and data services, AMPS 800 MHz networks and AMPS 800 MHz channels on TDMA 800 MHz net-
works can be used for fax and data services. Contact your local cellular dealer or service provider to
determine the availability of an AMPS analog network.
To make a fax or data-modem call, a special dial sequence to request an analog channel MUST be
entered just before the call is made. Do not use this dial sequence for a voice call.
If the request is successful, the normal fax or data rate negotiations will commence and the call will
continue. The analog channel assignment lasts for the duration of the call.
NOTE:
There is no guarantee that the analog channel request will be granted (there may be no
analog channel available). The fax or data call will fail if an analog channel is not assigned. Contact
your local cellular dealer or service provider to determine the availability of an analog channel.The
SX4e automatically adjusts the transmit and receive audio levels for optimum data transmission
when a fax or modem is detected. After the completion of the call, the audio levels are returned to
the user's previous settings (patent pending).
The SX4e is compatible with all group 3 facsimile machines and computer modems. Normally, data
transmission rates of up to 9600 baud are possible dependent upon the type of modem used and
your cellular service provider's capability.
The SX4e’s Status LED will indicate when an analog call has been initiated - see the
How to Use
the LED Status Indicators
section of this manual.
