Fritz!Box Fon WLAN 7050 - Annex A versus Annex B

Hi

I bought a german Fritz!Box 7050 (www.avm.de) from e-Bay Germany.
This is ADSL modem + router + WLAN + Voip + PBX, with analogue and ISDN
connections (both extrernal/internal)

In Germany, it seems that the ADSL protocoll is allways "ITU G.992.1 Annex
B"
Whereas is Belgium ADSL over ISDN is Annex B, and ADSL over analogue
conncetions are Annex A
This means that the german Box can only be used with ADSL over analogue PSTN
lines

Does anyobe know if there is a Firmware available to convert the Fritz!Box
form Annex B to Annex A ??
or is this a hardware issue, that can not be solved by a Firmware update ??

The AVM helpdesk is not willing to help me, as they do not give support
outside Germany (at least not for the german box; there is a different
international version I believe ..)

rgds
Philippe

 

Here you go:
http://www.vocesuip.com/viewtopic.php?t=13

it's in italian but it should be easy to find the file that upgrades
the FritzBox to AnnexA.

To install it, go to the firmware upgrade menu in the FritzBox.

Ciao
E

 

I think you mean the German box can only be used with ADSL over ISDN
which is Annex B wherever you are.

Phil

 

The german versions of the avm boxes can also be used with Annex A (you
can easily switch this via the telnet interface). It works, but might
not (here in Germany it is quite tricky to find an Annex A connection,
but lots of users have been reported to run the boxes on an Annex A
connection).

The differences in the Fritz!Box hardware (Annex B to A) are different
filter circuits in hardware, so the software will not help you there.

There is some information available (partly in English), please read
http://www.ip-phone-forum.de/forum/viewtopic.php?p=240850#240850

Frank

 

I think you've answered your own question!

 

Sorry to disappoint you, but I use a Fritzbox Wlan Fon 7050 in Italy
and I changed it from Annex B to Annex A through a simple software
upgrade.

Cheers
E

 

According to the manual (p. 20), you can connect the Box to either an
analogue (Annex A) or an ISDN (Annex B) phone line without having to
change anything (an RJ45 to RJ11 adapter is included).

 

I recently bought an Annex B ADSL modem on ebay, and was also worried
that it would not work in the UK, which is Annex A, but I took a risk,
bought it, and it does work. If you use a POTS splitter than you should
also be able to use the telephone to make phone calls at the same time
as using the internet.

Hope this helps! Let me know how you get on.

Ed

 

Sorry to disappoint you, but I use a Fritzbox Wlan Fon 7050 in Italy

If you would read my post correctly I said that it would work But,
depending on certain conditions, it just might not.

AVM builds different 7050 boxes for Annex A and Annex B.

FO

 

Wrong. (On german models) you can connect either to analogue or ISDN,
but *both* with Annex B (AFAIK there is no Annex A in Germany).

Again: the filter circuits on the "line" side are different between
Annex A and B (frequency range). The firmware supports both, but the
hardware is different.

Philippe, just try it, you cannot damage anything. All the information
you need is available in this thread and in the other thread you started
in the german newsgroup!

Frank

 

Thanks a lot ...
I did indeed a cross-posting, but because of the language I did not want to
post the same thread on both newsgroups ;-)
Anyway, I now understand the situation perfectly..
Bottom line:
* Altough not supported by AVM, many users reported to have converted their
"Annex B" Box to "Annex A" with a modified firmware. It may work
* I also understoop that (original) Annex A Boxes should *n o t* be
converted to Annex B, as this may cause problemas at the ISP exchange

Thanks a lot for ther help
Philippe

 

Eliodeo
Many thanks for the "good news"
I wil certainly try.
Personnaly, I have a ISDN line with DSL Annex B, and my (german) Fritz!Box
7050 works perfect
But a friend has a PSTN line (Annex A) and did not get his Box working....
now we wil try the fix !!!
Many Thanks to all !!!

Philippe
BE

 

Standards for Multirate SHDSL

The main body of Recommendation G.991.2 defines the interworking specification that is independent of any regional requirements. Annex A of G.991.2 defines requirements and objectives that are specific to North America; similarly, Annex B of G.991.2 defines requirements and objectives that are specific to the European community.

Nice !