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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘PSTN’ Category

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Fritzbox 7490 ISDN landline and intenral ISDN S0 bus links

Posted by jpluimers on 2022/08/08

Somehow WordPress.com failed to post it on the scheduled date 20150331, not sure why.

Though ISDN has been phased out in The Netherlands as and almost phased out in Germany, you can still use end user Terminal Equipment on the internal S-bus.

Since scheduling the post for 2015, the same information as the original diagram below appeared in text form on Wikipedia and there it also adds TAE connector information: Fritz!Box: Belegung der kombinierten DSL-Telefon-Buchse – Wikipedia

Die Anschlussbelegung der Kombibuchse ist wie folgt:[44]

  • Pin 1: ISDN 1a
  • Pin 2: ISDN 1b
  • Pin 3: analog La
  • Pin 4: DSL
  • Pin 5: DSL
  • Pin 6: analog Lb
  • Pin 7: ISDN 2a
  • Pin 8: ISDN 2b

Der RJ-45-Stecker am grauen DSL-Zweig des Y-Kombikabels zeigt folgende Belegung:[44]

  • Pin 4: DSL
  • Pin 5: DSL

Die übrigen Pins sind unbenutzt.

Am schwarzen Telefonzweig ist der RJ-45-Stecker folgendermaßen belegt:

  • Pin 1: analog La
  • Pin 2: frei
  • Pin 3: ISDN 2a
  • Pin 4: ISDN 1a
  • Pin 5: ISDN 1b
  • Pin 6: ISDN 2b
  • Pin 7: frei
  • Pin 8: analog Lb

Somit ist ein direkter Anschluss an ISDN möglich, für analoge Anschlüsse liegt für Deutschland ein Adapter auf TAE bei:

  • Pin 1 RJ-Buchse auf Pin 1 TAE
  • Pin 8 RJ-Buchse auf Pin 2 TAE

Ein normales Kabel mit TAE-Stecker und sechspoligem RJ-Stecker, wie es für den Anschluss analoger Telefone an eine TAE-Dose verwendet wird, funktioniert nicht.

Bei entbündelten Anschlüssen (ohne analoges oder ISDN-Telefon) kann ein direktes Kabel verwendet werden.

Das Kabel für deutsche Anschlüsse:

  • Pin 4 RJ-Stecker auf Pin 1 TAE
  • Pin 5 RJ-Stecker auf Pin 2 TAE

Original article

Some links:

–jeroen

FritzBox-7490-Y-Cable-DSL-ISDN-Fritz.33

Posted in DECT, Fritz!, Fritz!Box, Hardware, ISDN, Network-and-equipment, Power User, PSTN, Telephony | Leave a Comment »

On my research list: connecting Fritz!Box devices together into a virtual PBX

Posted by jpluimers on 2017/09/29

I’ve some Fritz!Box devices on various locations that each provide VoIP access and either ISDN or PSTN lines.

Wouldn’t it be cool to be able to join them together into a virtual PBX?

I’m not sure how it’s possible and what you need for it, so here are some links that should make my future research on this easier:

–jeroen

Posted in Fritz!, Gigaset, Internet, ISDN, LifeHacker, Power User, PSTN, Telephony, VoIP | Leave a Comment »

Siemens GigaSet DX600A TCP port 650 protocol looks like old-school AT commands…

Posted by jpluimers on 2017/09/29

While playing around with nmap to view some of my IoT^w LoT devices, I found out my Siemens GigaSet DX600A ISDN (yes: ISDN; I’m an old fart) has these two ports open:

PORT    STATE SERVICE VERSION
80/tcp  open  http    Siemens Gigaset A580, DX800A, or S450 VoIP phone http config
| http-methods: 
|_  Supported Methods: GET POST
|_http-server-header: 
| http-title: Site doesn't have a title (text/html).
|_Requested resource was http://dx600a-isdn.pso71.local/login.html
650/tcp open  telnet  Gigaset telnetd
MAC Address: 7C:2F:80:15:D6:10 (Gigaset Communications GmbH)
Device type: general purpose
Running: Linux 2.6.X
OS CPE: cpe:/o:linux:linux_kernel:2.6
OS details: Linux 2.6.13 - 2.6.32

I’m going to play with port 650 later as it looks like it supports an AT command protocol(on Windows the GigaSet QuickSync TAPI driver translates TAPI to AT commands) so it should be possible to do all kinds of cool stuff with it.

These links should help ans it should work with the DX800A as well:

–jeroen

Posted in DECT, Gigaset, ISDN, Power User, PSTN, Telephony | Leave a Comment »

KPN CPS (carrier pre select) code is 1655

Posted by jpluimers on 2017/09/26

Since the CPS I used was increasing the subscription cost to above zero, the the price difference to KPN was too large, so I wanted to switch back and needed the KPN CPS code.

From [WayBack] Het verschil tussen WLR en CPS I found out the CPS code for KPN is 1655.

Then I called 0800-1273 to set it back and then verified it was set back for all destinations on all ISDN numbers.

It’s time to research how to move away from ISDN anyway, but that’s a different story.

–jeroen

Posted in ISDN, LifeHacker, Power User, PSTN, Telephony | Leave a Comment »

GSM/3G/4G/LTE/… enable or disable caller ID when calling

Posted by jpluimers on 2017/02/13

When testing the setup of a Fritz!Box 7490 with fiber connection, routing anonymous/withheld ISDN calls to a new answering machine I needed to test if only Caller ID calls were getting through.

The easiest was to do this from my mobile phone.

Izzy explained how to in callerid – How can I make anonymous calls for everyone but contact list? – Android Enthusiasts Stack Exchange.

Basically all cellular networks based on GSM or derived technologies allow you to prefix any phone numbers with:

–jeroen

Posted in Cellular telephony, ISDN, LifeHacker, Power User, PSTN, Telephony | Leave a Comment »

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