I've had FTTC since September on 17a profile and had my Siemens DECT phones connecting straight to the Fritxbox (as the DECT base station) and CLI has been working fine, even with the latest firmware updates. I have had issues with phantom calls however but these seem to have stopped now. Using the UK lead supplied from the French supplier Fritzland.

There is a new beta international version firmware out yesterday (22nd December) v8.06.07 available on the English language Fritz!Labs site (to be followed up by a full release in January, I think). It does enable the use of alternative DNS servers to those of your ISP and gives me a marginal increase in both attainable rates on VDSL.

I suspect the CLI issue is just a function of distance from the exchange (I'm about 3.4km) and line quality, and that the Fritz!Box just has a higher detection threshold than other DECT base stations. That's how various users get it all the time, not at all, intermittently or partially, and it doesn't depend on whether your DSL is ADSL or VDSL.

Env:
Fritz 7270( 74.05.06)
Country:Spain
Analog Line Operator:Movistar(Telefonica)
Home:Big house total 5 floors (This is to reflect the house cabling is long)

I would like to share my experiments with you, hoping It helps somebody.
Commented in chronological order for proper context and better understanding.

1.Received Fritz a month ago. First Installation attempted without splitter,
just a simple microfilter connected to the phone Y cable, and then everything
to a plain connector to one house sockets. Analog Telephones still connected
to the analog line directly. Everything working fine(ADSL,WLAN,DECT,IP phones...)

2.CLI Service subscribed 3 days ago. Here problems started. Only telephones connected
directly to the analog line show CLI. Fritz is totally blind regarding CLI (call logs show unknown).

3.After reading some forums about CLI problem, I decided to simplify the installation.
So I installed the Fritz directlly to the PTR/ http://en.wikipedia.org/wiki/Demarcation_point
(through the testing socket, in this
mode the rest of the house is disconnected), only the phone connector without any
filter. CLI is working on Fritz (both call log,and terminals showing proper CLI)!!!

4.Reverted to the initial installation. This time I disconnected all the phones
attached to the analog line. Fritz connected to a house socket, just the phone
side, as in 3. CLI is not working.

Now, some thoughts:
-I've started to think that cable lenght is a very important factor for CLI to work.
-Remind everybody that the Fritz manual always recommend to install through a traditional splitter unit.
-I'm going to get one ADSL splitter and try everything again. My plan is to inhibit the local analog
network in my house, and start using the intenal fritz network (DECT/ip phones, an one analog connected to FON1).
-In the meanwhile, I would like to know how people have installed their FritzBox (splitter/microfilter),
Anyone with splitter suffering CLI problems?.


-Link to a public album in facebook showing some pictures for clarification.
http://www.facebook.com/media/set/?set=a.32715647064...

Jaime Casero

http://www.facebook.com/media/set/?set=a.32715647064...

Ok, ADSL splitter finally installed. I know it sounds weird, but after several setup configurations, I realized the CLI feature was being impacted by the PLC ethernet adaptor I attached to the FritzBox switch. If i'm right, this means there is some noise coming from the ethernet switch affecting the analog line, and the CLI detection process. Probably a harware issue, so no firmware will solve this. I still have to try with shielded cables for extra protection to electrical noise.

Hi

I've the same problem... I spent a week on tests, and finally succeeded.
The problem is easy to solve...
I just need to connect ground to the router. The easiest way would be to take the some cable ... Connect one end gently into the metal casing sockets eg LAN, the other end ,for example, to a water pipe, radiator, or other well-grounded object.

Now CLIP works without a problem...

Greetings

In reply to a post by Anonymous:

I just need to connect ground to the router. The easiest way would be to take the some cable ... Connect one end gently into the metal casing sockets eg LAN, the other end ,for example, to a water pipe, radiator, or other well-grounded object.

Tried this but . . . no joy. I think the absence of CLI masks various PSTN issues which can differ from line to line, so what works for some doesn't for others, unfortunately. And also the reason why it's so difficult for AVM to come up with a fix.

Can you provide me with more information on how you 'grounded' your router? What kind of cable did you use and how exactly did you connect it to the Fritz!Box? Some photos would be appreciated. Also, has it fixed the noise on the line? I too am suffering from a lack of caller ID on POTS but for the first time ever (I've had the router for about two and a half weeks) caller ID worked last night (my Siemens Gigaset SL565 DECT base works flawlessly with caller ID by the way). The only changes I made were to plug the Fritz!Box into a proper mains socket (i.e. not an extension), and disconnect the nearby HomePlug. Both the phone and the DSL cables were plugged into the Microfilter which went into the BT Mastersocket (phone line extensions disconnected).

However, this was unfortunately short lived as it seemed to work inconsistently. I was also unable to get it to work at all if I used the 'two microfilter' trick to get rid of the noise on the line. I eventually gave up and connected everything back as it was.

It does seem to be a grounding issue. This webpage, http://www.nat32.com/nat32e/htm/fritz.htm mentions the interference when making a call and suggests using a shielded CAT5 cable (what 'red shielded cable' are they talking about by the way?). Also, I notice if I don�t have the DSL cable plugged into the microfilter the telephone line is nice and clear.

There is a spare (UK) mains socket nearby which I can use the ground the Fritz!Box. I was thinking of getting one of these, http://www.amazon.co.uk/Anti-Static-Grounding-Plug-1... and then running a wire from the router to it but I�m wondering about the cable to use? Does an RJ45 to ground lug cable exist??

I�m hoping a properly grounded Fritz!Box will finally eliminate both the caller ID and the noise on the line issue.

Thanks.

Edited by deleted (Wed 15-Feb-12 15:02:33)

Below is a link to some photos of my Fritz!Box

http://fritzbox.servehttp.com

This thin wire reduced noise, so that CLIP is working properly.

Necessity is the mother of invention

Thanks for the photos. I got hold of a grounding plug (http://www.maplin.co.uk/antistatic-bonding-plug-12712) and then took some CAT5 cable and stripped out a single wire. I then took off some plastic coating at each end and put one end in a small gap between the switch and router case and the other to the antistatic plug. Unfortunately it didn't seem to make any difference (line noise or caller ID).

However, I don't know how to confirm the antistatic plug is actually doing anything...