DTMF Problems 3

[NTL555]

Hello all.

Has anyone had any problems with DTMF on a CICS/MICS 6.1/6.1MR with a CallPilot 100/150 installed? It seems like the Callpilot is not recognizing every other or few calls when the caller is entering his/her extension through the Automated Attendant.

This is what I have done.
1 Replaced SW/Caller ID Cards/Voicemail/System.
2 Made sure they were calling from analog phones.
3 Made sure they had Touch Tone Gate off.
4 Ran startup 2 times and reprogrammed the voicemail.
5 I bring it home and test it and it works fine NO problems.

And the customer is still insisting there is a problem. I go there and there is a problem. I am scratching my head at this one. I have not seen a "hidden code" like the startalk to change DTMF.

These lines are copper trunk and are not going through any channel bank. All the system that I have encountered with this problem has had CID on them. HelP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Thanks sooo much.

 

[NTL555]

Jerryreeve. I was thinking, CO lines are polarity sensitive aren't they?

bkrike. Even thought the LS/DS would be pointless to put in, i will definitely try it though.

Im just glad this customer is patient with me.

 

[Sphoneman]

I would not want to rule out with what bkrite stated.I had run into a job with CO problems for ringing. swapped card slots,replaced CI card,replaced KSU = same problem.

Changed out the replacement CI card with an LS/DS= Fixed. That customer wasn't using their CI. But it wouldn't hurt to bring one out. You can then play with CO Loss to ensure.

Steve
tele-dataservices.com

 

[jerryreeve]

for the most part there is a polarity but most equipment is not sensitive to the polarity of the line. it was just a suggestion that can eliminate ground loop interference (the interference that comes across the ground/return side of a pair) you might also want to test the loop current of the CO lines, High loop current can cause really strange problems also.

JerryReeve
Communications Systems Int'l
com-sys.com

 

[ttech]

Talking to A nortel dealer there is a glich in the software software that causes DTMF recognition errors. There is an upgrade availabe to dealers on the nortel site that is installed into the callpilot using a PC card

 

[aragon]

Post your current software version on your CallPilot.
The latest version is 2.1
Check lines with digit grabber.
Also bring ls/ds card to test against CI card.
If digits received from grabber are correct problem is either telco or line card.
Is the CI card the new global card?
Post the NT number from the CI card.

David Brillert

http://www.williamsglobal.com

 

[NTL555]

ttech.. I am looking for the DSP software release. A buddy of mine is trying to get it for me. Thanks for that tip.

aragon.. My callpilot is 2.00.4700 and I have not tried the LS/DS with a digit grabber. Still trying to get one. My CID card PN number is NT7B75AAAE which is the newer global CID cards.

Namly555

 

[aragon]

I am curious to see if the ls/ds will fix the problem.
Many customers are complaining about the gloabal cards.
You could also try dropping the gain on the cards by changing the card loss pkg to short CO.
I wonder if this might help.
It is possible the gain is too high currently resulting in echo.
If echo is heard then maybe the DTMF's are "double digiting".

David Brillert

http://www.williamsglobal.com

 

[NorstarWiz]

Namly,
You can use an SMDR6 as a digit grabber. Connect it to a laptop if you have 1 and monitor what is being dialed that way.

 

[NTL555]

NorstarWiz...

Dialing out is fine... a SMDR collects outgoing digits.. Cant collect incoming digits as far as I know. please correct me if I am wrong.

Nam

 

[NorstarWiz]

If you are recieving caller id it will capture the digits...just used it today to solve my centralized voicemail and networking problem.

 

[samh30]

I think the problem that you having could be fixed using the firmware DSP
patch from Nortel like TTech mentioned above,This patch is intended
for sites experiencing DTMF “echo” on CallPilot 100/150 platforms when
dialing subscriber numbers via Automated Attendant. The key being that
the second digit is echoed due, typically, to a high noise to signal
ratio on loop start facilities. An example of this issue is as follows:
Caller dials Company XYZ’s CallPilot Automated Attendant after being
prompted for the user’s subscriber’s number; caller dials 221, but is
routed intermittently to 222.
This patch can be loaded thru a either the Modem connection or the
network connection.I used that patch to fix 2 sites with the DTMF problems.I hope that helps.


Good Luck!

http://www.samhassan.com

 

[aragon]

Good point Sam.
The DSP patch was issued prior to the 2.1 upgrade release.
Does anyone know if the 2.1 upgrade includes the DSP patch?

David Brillert

http://www.williamsglobal.com

 

[samh30]

The DSP patch is different than the call pilot s/w, so if the unit is shipped prior to may 04 it has the old DSP firmware, and even if you upgrade the system to ver 2.10.06 you still need to upgrade the DSP patch, however all the new units shipped after may 04 it has the new DSP firmware. I hope that helps.

Good Luck!

http://www.samhassan.com

 

[aragon]

NAMly555

Try dropping the gain down using the short co pkg.
This may remove the echo.
The DSP patch may be required however it is downloaded from Nortel's password protected website.
This may cause you some grief.
If yo have access to the protected Nortel files then install the DSP patch and upgrade your CallPilot to 2.1 using the bootloader.
Maybe your supplier can do this for you.

David Brillert

http://www.williamsglobal.com

 

[NTL555]

Will try that,

I will have to get a buddy of mines to put it in for me. I dont have access to Nortel's Site. I wish I did. Will keep you guys posted.

Nam Ly

 

[rustynails]

I am having the same issues with a DTI card. Would this patch still be a possible fix?

 

[NTL555]

I actually did the patch, and am waiting to hear any complaints from the customer. Not hearing anything is a good thing. Will let you guys know what happens.

rustynails, it may help.

Nam Ly

 

[tecphonelady]

We have a CallPilot with this exact problem. Can anyone share the patch with us?

Thanks,

Ann

 

[rustynails]

NamLy555,

Whats the good word. How long has the patch been installed? Has the issued been resolved?


~nails

 

[NTL555]

Hey guys... Sorry for he long update. Went onsite, tested with LS/DS Cards and still had the same problems. Found the patch, installed it and it is working like a champ. Thanks to all you guys.

Nam Ly