PRI Configuration How-to

North America PRI settings:

switchtype = national (ni2 or national 2)
signalling = PRI_CPE
encoding = b8zs
framing = esf
bchan = 1-23
dchan = 24
DNIS = 10 digits

What you need before you install a PRI

1. A "cut sheet" from your carrier. This is typically a piece of paper with the configuration information of the PRI listed. Please obtain a cut sheet from your carrier before you attempt to install a audiocodes PRI and before you contact our support team.

2. A physical connection between the Smart Jack (owned by the carrier) and your (CPE) customer promise equipment which is the Audiocodes . Every Audiocodes PRI is shipped with the proper cables. For reference - you will be using a cross-over cable.

3. "Loopback Adapter". We always ship all systems with this adapter in the "accessories" box. If you have lost or misplaced the loop-back adaptor you can buy one at Radio Shack for a few dollars. The loop-back adaptor tests to make sure the audiocodes PRI is installed and configured correctly.

The most common settings

The following is a comprehensive list of all the various configuration settings:

1. Framing

Framing:
ESF
D4
CAS
CCS

2. Encoding:

B8ZS
AMI
HDB3
NCRC2

3. Signaling:

pri_cpe
pri_net
fxs_ks
fxs_ls
fxs_gs
fxo_ks
fxo_ls
fxo_gs
em (E&M)
em_w (E&M Wink)
em_e1

4. Switchtype:

national ni2 (national 2)
national ni1 (national 1)
dms100
4ess
5ess

5. D-Channel:

dchan=0
dchan=24 (add 24 to this value for each sequential PRI)
dchan=16 (add 16 to this value for each sequential E1)

6. Timing:

TE_CLOCK = MASTER (Timing provided by the PRI card itself)
TE_CLOCK = NORMAL (Timing provided by the PRI Provider's equipment)

7. J1 settings (for Japanese PRIs - please consult your provider for more information)

8. BRI ISDN circuits found throughout Europe, Australia and Africa