(my previous post got messed up) 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 has call waiting enabled 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. -- Outgoing mail is certified Virus Free. Checked by AVG Anti-Virus (http://www.grisoft.com). Version: 7.0.271 / Virus Database: 264.9.3 - Release Date: 9/17/2004 -- Outgoing mail is certified Virus Free. Checked by AVG Anti-Virus (http://www.grisoft.com). Version: 7.0.271 / Virus Database: 264.9.4 - Release Date: 9/21/2004