MIRAN 3 - Audio "static"

[robl3000]

I have just installed a MIRAN 3 in a CS1000 v5.5 lab system. Routes and trunks seem to be correct as the MIRAN is operational. However, when I access the MIRAN from a phone, the recordings or prompts from the TUI have a fair bit of static. The audio is not as clear as I would have expected. This includes the TUI prompts that were included by Nortel, so I am certain its not an issue with the audio files. I've tried to disable the card, reseat, then re-enable, but it doesn't seem to resolve the problem. The curious thing is that the amount of static seems to vary between calls.

Below is the details for the DID route to the MIRAN (for TUI)

TYPE: rdb
CUST 0
ROUT 127

TYPE RDB  
CUST 00 
DMOD 
ROUT 127 
DES  MIRAN7
TKTP DID 
M911_ANI  NO
M911_TONE  NO
NPID_TBL_NUM   0
SAT  NO  
RCLS EXT 
VTRK NO  
NODE 
DTRK NO  
PTYP ACO 
AUTO NO  
DNIS NO  
ICOG IAO 
RANX NO  
SRCH LIN 
TRMB NO  
STEP 
ACOD 4888
CPP  NO  
TARG 
CLEN 1 
BILN NO
OABS 
INST 
TIMR ICF  512 
     OGF  512 
     EOD  13952 
     DSI  34944 
     NRD  10112 
     DDL  70 
     ODT  4096 
     RGV  640 
     FLH  510 
     GRD  896 
     SFB  3 

     IENB  5 
     VSS  0 
     VGD  6 
SST  5 0 
NEDC ETH 
FEDC ETH 
CPDC NO  
DLTN NO  
HOLD 02 02 40 
SEIZ 02 02 
SVFL 02 02 
DRNG NO  
CDR  NO  
VRAT NO  
MUS  NO  
MR   NO
MANO YES 
EQAR NO  
OHQ  NO  
OHQT 00 
TTBL 0 
ATAN NO  
OHTD NO  
PLEV 2 
MCTS NO  
ALRM NO  
ART  0 
SGRP 0 
ARDN NO  
AACR NO

And below is the trunk detail:

DES  MIRAN7
TN   008 0 00 07 
TYPE DID 
CDEN 8D
CUST 0 
XTRK EXUT
FWTM NO  
TIMP 600 
BIMP 3COM
AUTO_BIMP NO
TRK  ANLG
NCOS 0 
RTMB 127 1 
NITE 
SIGL LDR 
STRI/STRO IMM IMM 
SUPN NO  
AST  NO  
IAPG 0 
CLS  UNR DIP CND ECD WTA LPR APN THFD SPCD 
     P10 NTC 
TKID 
AACR NO

I've seen several posts about static with a MIRAN, but it seems the were dealing with only hearing static. I can certainly hear the prompts, but they are mixed with static. Does anyone have any suggestions on how this could be corrected?

Thanks!

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[KCFLHRC]

What kind of cabinet or chassis is it installed in? Is it in a main cabinet or an expansion?

 

[robl3000]

It's in an NTDU15 - MG1000 expander cabinet.

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[KCFLHRC]

Can you move it to the main cabinet? Also check your pins and cables in that expander.

 

[robl3000]

I've replaced the cables connecting the NTDU14 chassis to the NTDU15 expansion chassis, as I had a spare set. This hasn't resolved the issue.

I'll need to take some time to reconfigure the system move the card to a different slot. All of my slots are already occupied, so I need to out something first.

One thing I have noticed after further testing, the audio is almost crystal clear after the card is reset. The longer the card is up and running, the static seems to steadily increase. It only takes about 15 minutes before it is noticeable, 1-2 hours and its unacceptable.

If I get some time this weekend, I'll try it in different slot.



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[KCFLHRC]

I'm thinking you just have a bad Miran card if the static gets worse the longer it's plugged in.