Durchschalten am Festnet seite, geht das?

[Klaas_Brant]

Apologies for writing in English. I can read and speak German, but writing is very difficult. I know Germans have no problem with reading English Feel free to reply in German.

Problem: Before I had a Fritz! Box 7170 I had a simple telephone switch. When I dialed a number it was given 1:1 to the ISDN line with the proper MSN selected. When I wanted to divert (durchschalten) to my mobile I dialed *210*<mobile number>#. The dialtone on the ISDN line changed from straight tone to pulse tone to warn a diversion is in progress. The mobile phone shows the callerid of the orginal caller (CLIP forwarded). This is ISDN KPN Holland.

Now with the Fritz! Box 7170 I can divert also (using *21* or the web interface) but the mobile phone always gives my own MSN in the callerid and not the original callerid.

I tried *11# which gives indeed a dialtone, giving the impression you are hooked to the ISDN line. But *210* is rejected, and *21* creates a rule again in the Fritz! Box

Is there a solution to the problem? Can the CLIP be forwarded or is it possible to really get the *210* to the ISDN line without the Fritz! Box doing a interpretation...

Thanks,
Klaas Brant
The Netherlands

p.s. great site, I learned soo much!

 

[Ecki-No1]

Meines Wissens geht die Übertragung der originalen Anrufer-Telefonnummer nur, wenn die Rufweiterleitung in der Vermittlungsstelle erfolgt.
Erfolgt die Rufweiterleitung hingegen in der Fritz!Box, so baut die Fritz!Box eine neue ausgehende Verbindung auf. Dadurch wird die ausgehende Telefonnummer durch die Fritz!Box übertragen, nicht die weitergeleitete originale Telefonnummer.

Warum dies so ist, weiß ich nicht, aber wäre es anders, so könnte man ja auf die Idee kommen, irgendeine Telefonnummer zu übertragen - und damit Missbrauch betreiben.

 

[Klaas_Brant]

Yes, it is possible!

When you enter *21 then this code is processed by the Fritz Box and the call is diverted (durchschalten) in the box.

If you want to divert at the provider (festnet) then you have to escape the *21 code like this: *111# *#*21* 0842 333 #. The *# is a signal to the Fritz Box NOT to process it but relay the next code to the provider. So in this case the line (111) is diverted to 0842 333 at the provider.

Two notes:
1. it is possible your provider wants you to enter *210 instead of *21
2. diverted call are not signaled to the original line so they never show up in the call list.

I know many of you have been looking for this ;-)

Greetz
KB