My understanding is that there are 2 popular PRI service types: NI-1 and NI-2

There are then different forms of implementation of each, for example 5ESS (AKA: custom NI-2) is an implementation form of NI-2.

I have four DSP’s each connected to a Telus PRI NI-2 service. Each PRI has 1 D channel and 23 B channels.

Notice that the primary switch type in my trunk settings is set to 5ESS. Telus have suggested that I change it to NI-2 and see if that resolves my problem.

DSP

Software revision = 3.5.109

Framing Mode  dsx1ESF

Line Coding Options     dsx1B8ZS

Circuit Identifier           

Loopback Configuration           dsx1NoLoop

Signal Mode     messageOriented

Transmit Clock Source loopTiming

NIC Type        longHaul

Response to Remote Loopback            ignore

Jitter Attenuation           attenJitterOnRcvr

Transmit Line Build Out            dB0pt0

Dial In Address            dnis

Dial In/Out Trunk Start Signal Type      wink

Ack Wink On Dial In Address Info Received    disabled

Dial Out Address Delay            70

Dial In/Out Trunk Type eAndMTypeII

Primary Switch Type    priSw5ESS

Idle Byte Pattern           254

Receiver Gain   dB26

Tone Type        dtmf

Number of DTMF Tones          4

Send Code       dsx1SendNoCode

External Signaling Mode (will take effect next boot)       none

Overlap Receiving Mode          disable

Overlap Receiving Inbound Digits Expected      12

Overlap Receiving Timeout Delay         12

ARC:

Software Revision = 5.3.3

Is there any ARC configuration needed to get V.92 working?

When I select the whole card in TCM and go to the interface/V.92 options, V.92 appears to be disabled; however, if I select the lower LED and go to the same options, the V.92 functionality appears to be enabled.

Setting V.92 aside, if a dial-up user is connected and have call waiting and internet notification software running (for example: USR’s ICN) when a call comes through – the user doesn’t get notification when connected to our system. If the user disconnects and reconnects to a different ISP (for example a freebie NetZero account) the notification works! I’m not sure what the problem is, whether it’s my total control config or PRI config. Any suggestions would be greatly appreciated.

I’ll be switching the primary switch type to NI-2 tomorrow night – I’ll post the results.

Thanks, Paul.