Ericsson W25 Frequenly Asked Questions
(FAQ) with Answers
Is the W25 easy to setup?
(From Ericsson Dist., with some
additions by Alan Spicer Marine Telecom)
Back To Ericsson_W25 Main Page
Yes its as simple as putting a sim card in the unit, connectingthe
antenna and power supply. For setting up internet you will also need to
enter the APN provided by your service provider.
What type of sim card does the W25 use?
A standard mobile/cell phone sim card. Can be either a 2G or 3G sim
Can I connect an external antenna?
Yes the W25 has an external antenna port (SMA Female)
Can I use my existing marine antenna?
If you have an existing GSM or CDMA antenna on your boat it can be used
with the W25. You cannot use existing antennas used for radio
communications or television equipment
What range can I expect to get with
30-140km or 15-80 miles from a cell tower. Range is dependant on the
network, power of the cell tower and technology used
(Alan Spicer's Note: AT&T Engineer says that 21 miles is the limit
of cellular via GSM and related UMTS Technologies. Outside of that
distance it's not likely to work at all.)
What frequencies does the W25 support?
GSM - 850/900/1800/1900 MHz
UMTS/3G - 850/1900/2100 MHz
Will the W25 work in other countries?
Yes the W25 will work in nearly every country around the world
Will the W25 work on the CDMA network?
(in the U.S., e.g. Will it work on Verizon or Sprint?)
No the W25 will only work on the GSM/UTMS/3G networks
If a 3G network is not available, will
the W25 still operate?
Yes, if a 3G network is not available the W25 will automatically
connect to a 2G network
What type of warranty does the W25
The W25 comes with a 12 month warranty. Extended warranties are also
Where can I get product support?
Alan Spicer offers telephone and email installation support for 30 days
on purchases of the W25 from Alan Spicer Marine Telecom.. Longer terms
of Consulting/Support can be obtained with a Consulting and Support
Agreement purchase ($500.00 for 1 year.) Please see our contact
information. The product has 1 year manufacturers warranty, Alan Spicer
can help you obtain warranty support if needed in the U.S if you have
purchased from ASMT.
How does the W25 differ from a normal
The W25 is more like a base station mobile/cell phone providing
superior voice quality and reliable signal strength. You can also
connect landline devices such as a phone handset, fax machine and
What are the power requirements of the
The W25 can be powered by the supplied mains power adapter or from an
alternative power source. Power input is 10-28V DC. If used on mains AC
power on a yacht ASMT recommends battery backup and surge protection be
used. APC and other UPS - Uninterruptable Power Supply - are a GOOD
Where can I find out further technical
Contact Alan Spicer Marine Telecom if you need additional technical
Can I connect the W25 to a phone
system or PBX?
Yes, you can connect the W25 to a spare analog trunk port on a PBX.
Does the W25 provide line reversal?
Yes, the W25 has line reversal to help ensure the line is cleared once
a party hangs up the call
Is the voice quality better than a
Yes the W25 uses advanced speech codecs for superior voicequality. As
you use a standard landline handset to make calls the call quality is
virtually landline quality
Does the W25 produce a dial tone like
a landline phone?
Yes, just like a landline phone when you pick up the handset a dial
tone is heard
How are the telephone calls and
As all communications is through a sim card, voice calls and internet
use are charged at normal mobile/cell phone rates.
What service provider do I connect
Any GSM/UMTS/3G service provider
Can I use a landline cordless phone
with the W25?
Yes, you can use a cordless or DECT style landline handset with the
Can I talk on the phone and surf the
internet at the same time?
This is dependant on the cellular/mobile network provider. As a general
rule 3G networks allow simultaneous voice and internet, 2G networks
will usually put the internet on hold when a call is received.
(More info from
supports simultaneous voice and data communication"
Can I talk on
the phone and surf the internet at the same time?
dependant on the cellular/mobile network provider. As a general rule 3G
networks allow simultaneous voice and internet, 2G networks will
usually put the internet on hold when a call is received.
* I could
probably come up with a more technical answer to that question than
that, but I'd have to go try and track it down. I don't think I've
tried to do this yet on any of them that I've installed. Or any that I
have had for test. The next time I have a chance I'll try this.
probably tommorow. If I test it - it will on AT&T in the U.S.
supported by AT&T Wireless Network.)
Do I need to use a cellular/mobile
phone with the W25?
No, the sim card is inserted into the W25 unit and therefore a
mobile/cell phone is not needed.
(ASMT Note: To
our knowledge at this time noone in the U.S. is supporting Fax T.38 for
Ericsson W25 or
any similar gear. We have been working with AT&T to try and get
them to add
on their network.)
What type of fax machine should I use?
You can connect a standard fax machine to the W25.
How does the Ericsson W25 send faxes?
Faxes are sent over the mobile/cellular network using a fax over IP
service (T.38 protocol). Either your service provider must have a T.38
fax service available or you can use a VOIP provider that supports T.38
How do I configure the W25 for
The W25 has an inbuilt web interface for configuring the internet
settings that will be provided by your service provider. If you need
help with U.S. Carrier settings please contact Alan Spicer.
How do I connect my computer to the
Connecting a computer is via a network cable or wirelessly using a WiFi
How many computers can I connect to
You can connect four computers using network cables or up to 256
computers using WiFi. If you need to make a network on a yacht for
crew, guests, and owners; or other large network site on mobile or land
- please call Alan Spicer to arrange advanced support.
What internet speeds can I expect?
Internet download speeds are dependant on the network, signal strength
and data connection type.
2G - GPRS - up to 86kbps
2G - EDGE - up to 237kbps
3G - 3G Data - up to 384kbps
3G - HSDPA - up to 7.2mbps
What is the signal range of the WiFi?
You can expect a WiFi range of up to 50m in ideal environments. The
WiFi signal strength can be adjusted to suit.
Can I secure the WiFi connection?
Yes, the W25 supports WEP, WPA/WPA2 encryption protocols.
Alan Spicer Marine Telecom (communications (at) marinetelecom.net)