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3904 Sets with Push to Talk Handsets

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dogg1

Technical User
Nov 3, 2008
217
US
We are getting ready to install some 3904 series sets with push to talk handsets at one of our call centers. The issue is that we cannot get dialtone on the hand set when we go off hook. If we push the button on the handset and then go off hook we get dial tone. We tried the handset on a 3903 set and works fine, without pushing the button first. Does anybody have suggestions?

Thanks in advance.
 
Check you have the handset plugged into the correct RJ11 connection at the back...My thought is you have it in the Headset socket....Other than that can you post one of those 3904 TN's configured please

Cheers!!
 
I am not familiar with the Push To Talk handsets, but there is an option in the phone menu where you can change from Off Hook Default setting to Handsfree or Headset. You might want to try the opposite setting it is on to see if that fixes this issue. From the 3904 press Options key (next to headset key) then press 16 to reach OffHook Default (or scroll thru until you reach that option) then select the other option.
This may work if SL1M1's or BiscuitJack's responses do not. It could be the headset socket or something in the 3904 config versus the 3903 config as SL1M1/BiscuitJack state.
 
I have the same issue with 3904 sets and PTT handsets which we acquired for a customer. HFA is already set and the handset is plugged into the proper receptacle. I also toggled between headset and handsfree defaults within the Options list, with no effect.

Even stranger: Other 3904s in same PBX work OK. Firmware maybe? The set with the problem has Core FWV = 024 and Flash FWV = 090; whereas the working set has 024 and 087.

Here is a sample TNB. Not sure how to make this work. Any ideas?

DES HO25
TN 212 0 01 15
TYPE 3903
CDEN 8D
CTYP XDLC
CUST 0
ERL 0
FDN 47500
TGAR 0
LDN NO
NCOS 7
SGRP 0
RNPG 0
SCI 0
SSU
LNRS 16
XLST
SCPW
CLS UNR FBD WTA LPR MTA FNA HTA TDD HFA GRLD CRPD STSD
MWA LMPN RMMD SMWD AAD IMD XHD IRD NID OLD VCE DRG1
POD DSX VMD SLKD CCSD SWD LNA CNDA
CFTD SFD MRD DDV CNID CDCA MSID DAPA BFED RCBD
ICDD CDMD LLCN MCTD CLBD AUTU
GPUD DPUD DNDD CFXA ARHD FITD CLTD ASCD
CPFA CPTA ABDD CFHD FICD NAID BUZZ AGRD MOAD AHD
DDGA NAMA
DRDD EXR0
USMD USRD ULAD RTDD RBDD RBHD PGND OCBD FLXD FTTC DNDY DNO3 MCBN
CDMR MCDD T87D PKCH
CPND_LANG ENG
RCO 0
HUNT 47500
LHK 1
PLEV 02
DANI NO
AST
IAPG 0
AACS NO
ITNA NO
DGRP
MLWU_LANG 0
MLNG ENG
DNDR 0
KEY 00 MCR 69799 386 MARP
CPND
NAME Cecil Grant
XPLN 27
DISPLAY_FMT FIRST,LAST
01 MCR 69799 386
CPND
NAME Cecil Grant
XPLN 27
DISPLAY_FMT FIRST,LAST
02 ADL 16
03 ADL 16 35192
04
05
06
07
08
09
10
11
12
13
14
15
16 MWK 47500
17 TRN
18 AO6
19 CFW 16 92557273
20 RGA
21 PRK
22 RNP
23
24 PRS
25 CHG
26 CPN
27 CLT
28 RLT
29
30
31
DATE 8 OCT 2008
 
Sparky54 -
I think you provided the answer!!! I am thinking that in FWversion 90 Nortel must of missed something that causes PTT to not work properly.

Other 3904s in same PBX work OK. Firmware maybe? The set with the problem has Core FWV = 024 and Flash FWV = 090; whereas the working set has 024 and 087. So, I would tell everyone to go back to version 87 until someone can test new firmware (I think 92 is out at least) and see if it works properly!

 
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