We had one customer with different receive and transmit levels between IP phones and tdm phones and changed these levels in PAD tabel 15 to resolve the problem.
The PAD table 15 for IP phones are programmed in LD 73. The type is PRI and not PRI2.
REQ prt or chg
TYPE pri
FEAT pad
PDCA 15
TNLS
DTI/PRI PDCA
ONP 8 17
DSET 0 15
OPX 6 20
DTT 5 19
SDTT 5 19
DCO 4 19
DTO 3 19
VNL 5 19
SATT 3 19
ACO 3 20
ATO 3 19
PRI 19 21
PRI2 1 15
XUT 6 17
XEM 4 20
BRIL 19 21
BRIT 19 21
WRLS 19 21
change the pri2 settings. first number is the receive level the second number is your transmit level.
Below are the transmit and receive numbers corresponding a dB value
Code Value (dB) Code Value (dB) Code Value (dB)
0 0.0‡ 9 +9.0 18 -4.0‡
1 +1.0‡ 10 +10.0‡ 19 -5.0
2 +2.0‡ 11 +11.0 20 -6.0‡
3 +3.0‡ 12 +12.0‡ 21 -7.0
4 +4.0‡ 13 +13.0 22 -8.0
5 +5.0‡ 14 +14.0 23 -9.0
6 +6.0‡ 15 -1.0‡ 24 -10.0
7 +7.0 16 -2.0‡ 25 Idle‡
8 +8.0‡ 17 -3.0‡ 26 +0.6‡
Note 1: PRI/DTI pad category prompts require GPRI package 167.
Note 2: Dagger Represents pad values supported by DTI2 for large systems.
Note 3: Small System supports all pad values for DTI2.
Note 4: Positive dB represents loss and negative dB represents gain.
Note 5: Code 0, pad value 0.0, is equivalent to no pad. It is used for DTA
(Data only) and VOD (Voice or Data) call types and supported by DTI2.
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