Thread: ADSL Line disconnects when a call recd or made

Hello,

I am facing a strange issue for some months now. Whenever I receive a call or just lift my phone receiver to make a call, my ADSL line disconnects. It then reconnects and when I keep the receiver down after finishing the call it again disconnects and reconnects.

I checked the splitter and related connections and they are fine.

This happens even if I disconnect my phone from the splitter and just give a call to my number.

I have logged my complaint at BSNL several times however they are unable to resolve the issue.

Has anybody on this forum faced such issue? I suspect the problem is with the BSNL line since with the same setup at my end everything was working fine earlier.

I am using Pronet 101 E/U modem+router

Please let me know if additional info is required.

Thanks in advance!
NitinP

It is surely a splitter problem. Make sure all connections come after the splitter. Refer this diagram





Replace the splitter and check.

Hello MeetDilip,

Thanks for your quick help. I confirm that the splitter connections are as you have shown. The same setup was working fine.

I also tried 3 different splitters (working fine at my friends' place) and the result is the same

Thanks,
NitinP

Incoming Bsnl line from Junction box say GREEN/RED . reverse this.
Connect Rj11 as usual.
Confirm No parallel phone ports in other rooms. ( Internal customer wiring )

Only one Phone in USE ?
feedback.

Hello essbebe,

Reversed Red/Green wires but no luck. There are two points in our house. On both I have connected the splitter as was shown in the diagram from meetdilip. I have replaced both these splitters with working ones and still facing the same issue.

I tried on combinations like having phone+modem on one point, phone on one and modem on other etc. Same issue.

Once again let me confirm that I connect phone and/or modem only after the splitters. Splitters are always connected to both points.

I am at my wit's end! That's why I feel the problem might be in BSNL line?

Thanks,
NitinP.

What are the models of telephone you use ?
Cordless type caller Id type etc.
Can you borrow another Telephone Instrument from your friend and test .
with Beetel telephone problem was solved ( I had same problem with old instruments)
I can escalate this to BSNL technical side ( they usually reply to me as I refer ,very rarely our problem/s to them ) :

The splitters used " should be ADSL splitters as shown by @ meetdilip.
Modem goes DIRECT to BSNL line whether you use an ADSL splitter or
not. Splitter block Data signal entering Phone.( filtercircuit condenser coils only for Phone side )
If you hear "Hiss" in phone ADSL splitter bad/ connections incorrect.
( not in your case )

Hello essbebe,

I use a very basic phone from Beetel (Black in colour), normally used for intercomm systems. I have also used Panasonic cordless phone but due to battery issues I stopped using that and started using the Beetel one.

This problem was there when I was using the Panasonic and still persists when I am using Beetel now.

Thanks a ton for conveying this to BSNL.

Please let me know if you need any more info.

Thanks,
NitinP.

Please post SNR/ATTN data
http://www.kitz.co.uk/adsl/connectionprobs.htm

adsl drops out when phone call is made or received.

Incorrectly installed filters - check filters are installed correctly see here.
Faulty filters - replace one by one to identify which filter is faulty.
Fault on the line - unlikely but possible if all else has been eliminated

more.>>>>>>.




Please provide model number of both phones in use.
WILD try!:
If you are in "Dialer" MODE change over to PPPoE "Always On"
( userid/PW entered/stored in modem ) or visa versa !

Hello essbebe,

Guess what! I have already tried mode switching with no luck! Currently, I am on PPPoE always-on mode.

Here are the model numbers of phone instruments:
1. Panasonic - KX-T89D2CID
2. Beetel - Secure V3.1

Thanks,
NitinP.

Hello essbebe,

Attached herewith is the full statistical data including SNR and ATTN.

Thanks,
NitinP.

seems acceptable.

In DSL page uncheck ADSL2 + box
and hope the other problem is solved.
you may get adsl2 ( uncheck again and retain GDMT others.
Idea is to get a stable connection,
Check whether attn reduces. when adsl2 or GDMT is selected.

Hello essbebe,

Thanks for taking all the efforts, really appreciate.

I unchecked the ADSL2+ but unfortunately still there is no success.

Thanks,
NitinP.

please post snr atttn figures for GDMT. mod mode selected.

Para two:
Bsnl Junction Box In your room.
Is it an Yellow box with some PCB ( printed circuit board Inside with components ) having a RJ11 socket. ???

Check in Telephone whether in PULSE mode or TONE mode.
Tone mode preferred.

Originally Posted by nitinp

There are two points in our house. On both I have connected the splitter as was shown in the diagram from meetdilip. I have replaced both these splitters with working ones and still facing the same issue.

Two splitters? Did you try having just one splitter, with the splitter's telephone line out then branching out for the two phones?

I Use Two ADSL splitters .
(a) One for Phones ( cordless + Standard caller ID phone )+ modem
(b) Another in Bedroom ONLY for PHONE.
No problem.

Hello essbebe,

Mode ADSL2:

SNR - Dn:12.8, Up:29.9
ATTN - 18.0, 9.7

Mode ADSL2+:
SNR - 24.2, 32.1
ATTN - 20.5, 9.7

There is no junction box, we have one cable with 4 pairs. 1 Pair has telephone line and 3 others are for intercom. This one pair directly connected to RJ11 - Green and Red. For intercom there's a separate RJ11. Other pairs (for intercom) terminate in that separate RJ11.

Telephone in TONE mode.

Hello Glass,
As Essbebe said, for every socket (two of them) I have a splitter always connected.

Thanks,
NitinP.

OK, further to check that there's no problem with splitters,
1. I disonnected phone, modem etc. from all (2) sockets.
2. Now no instrument connected to any socket.
3. I connected modem "diectly" into socket.
4. Now there's only modem connected directly into socket, phone is not connected. Splitters are not connected.
5. Now I give a call from my mobile to my landline number.
6. ADSL line disconnects

Thanks,
NitinP

Please try a single pair RJ11 short cable ONLY for ADSL splitter.

1 Pair has telephone line and 3 others are for intercom

5. Now I give a call from my mobile to my landline number.
6. ADSL line disconnects

How the ringer pulse reaches your line ? Handset must be in cradle for
bell to ring.

. Now no instrument connected to any socket.
3. I connected modem "directly" into socket.

Ring stops at Exchange end.

Hello Essbebe,

RJ11 for the telephone pair is separate from the RJ11 for intercom pairs.

1. Cable with 4 pairs at the entrance of my home.
2. One pair separates out and is connected to two RJ11's (in parallel) in separate rooms. These are ONLY telephone points where I connect my splitters etc... These RJ11's have only two contacts (R+G) - Single Pair RJ11 as you said?

3. Other 3 pairs go to separate RJ11's ONLY for Intercom.

Is this what you suggesting?

Thanks,
NitinP.

Hello Essbebe,

RJ11 for the telephone pair is separate from the RJ11 for intercom pairs.

1. Cable with 4 pairs at the entrance of my home.
2. One pair separates out and is connected to two RJ11's (in parallel) in separate rooms. These are ONLY telephone points where I connect my splitters etc... These RJ11's have only two contacts (R+G) - Single Pair RJ11 as you said?

3. Other 3 pairs go to separate RJ11's ONLY for Intercom.

Is this what you suggesting?

Originally Posted by nitinp

How the ringer pulse reaches your line ? Handset must be in cradle for
bell to ring.

No. there's no ring since all telephones are disconnected. I can hear ring in my mobile only - ring from Exchange?

Thanks,
NitinP.

BSNL PHONE Junction in your house.

1. Cable with 4 pairs at the entrance of my home.

3. Other 3 pairs go to separate RJ11's ONLY for Intercom.

The Intercom set up external to your location?
How BSNL Junction box used for Intercom ? Explain.

You can have any number of RJ11 sockets.
It is the cable with multiple pairs which can be a problem.

ONLY two wires(pair Green/ RED) from the Box to your room allowed.
confirm.
Para two :



Para three:
from Google search:

There is a slim chance that it's the modem so if you have a friend with DSL you can borrow their modem and try surfing while calling in also.

can you try another modem?
Is the problem in WIFI mode/LAN mode ?

PN-ADSL 101E/U - ADSL 2+ Router listed as wifi model.
In the page where you changed Mod mode/s
ensure.
Bistswap is enabled.
A screen shot of Connection status , if possible.

Originally Posted by essbebe

BSNL PHONE Junction in your house.


The Intercom set up external to your location?

- YES

Originally Posted by essbebe

How BSNL Junction box used for Intercom ? Explain.

- There's a module called "GE 2005 0.5 IDC Module" where different pairs of the cable are crimped. Telephone pair and intercom pairs separate out at this module. I am not sure as to where this cable originates from and how BSNL wire and intercom wires are connected to this cable.

Originally Posted by essbebe

You can have any number of RJ11 sockets.
It is the cable with multiple pairs which can be a problem.

ONLY two wires(pair Green/ RED) from the Box to your room allowed.
confirm.

- Yes the module separates out the BSNL two wires.

Originally Posted by essbebe

Para two :



Para three:
from Google search:

can you try another modem?

- OK. This might take some time, though.

Originally Posted by essbebe

Is the problem in WIFI mode/LAN mode ?
Pronet 101 E/U modem+router Presume NON wifi model.

- Yes you are right, it's a non-wifi model.

Originally Posted by essbebe

In the page where you changed Mod mode/s
ensure.
Bistswap is enabled.

- Yes it's enabled.

Originally Posted by essbebe

A screen shot of Connection status , if possible.

- Attached herewith.
Thanks,
NitinP.

Thanks for the device info.Noted. Seems same like Beetel 220BX.

No details of your Intercom unit available in Google search/Yahoo Search.
No idea how an Intercom circuit is connected to BSNL telephone. junction with three pairs of wire ! ( Is this in same building ?)
Remove the GE unit and disable Intercom facility.

.

Thanks essbebe for all the efforts taken. Yes it's in the same premises. I will call our intercom person and try to figure out this mess! I will again follow up with local BSNL exchange and let all know if and when I find the problem and solution thereof.

Thanks,
NitinP.

There should not any parallel before splitter.Telephone should be connected from Phone point in splitter.If you still find problem remove the splitter and connect directly to modem.Then you will get clearance whether is splitter problem or line problem.still problem persists immediately ask JE to change line.

Have you read all the 20 odd posts in this thread
and added anything new ?
See for example Post No. 2 and images in Post No 15 and 19.