Topic: TE220 Card T1/E1 problem + DAHDI (ESXi question)

[stdean]

I am attempting to install a TE220 dual port T1/E1 card into my Asterisk setup, but for some reason the card is 'stuck' in E1 mode (I want to use it with T1 connections). I have used similar cards before (TE205P) with similar versions of Asterisk and I have not had many problems.

I am running SME 8.0beta5 with Asterisk 1.4, DAHDI 2.3 and Sail 2.4.1-12. I am also (and this is where my gotcha probably is) running this as a virtual machine within ESXi 4.0.

Hardware wise I have a Xeon E5506 which has the necessary virtualization hooks to do PCI passthrough, and I can see my TE220 card when I load my virtual machine.

I understand that the jumper pins need to be open in order to be in T1 mode, but if I have them open or closed dahdi_scan will always report the card as being digital-E1. Updating my configuration (/etc/dahdi/system.conf) to a T1 format i.e. something like "span=1,0,0,esf,b8zs" will give me an error saying I'm using an invalid parameter.

I'm hoping someone else has had success running Digium cards in ESX before, since it would be pretty awesome if we could consolidate our machines onto the one ESX box. It seems strange to me that while the VM will see the card, the jumper settings are somehow being 'ignored' or mistranslated by ESX.

Any ideas?

Conor

[SARK devs]

Hello Conor

Not a clue on this but I think you need perhaps to address your question to Digium since this is pure Digium code which is causing you a problem. 

For what its worth, there are so many PRI asterisk installs out there that I can't imagine a problem like this would have gone unnoticed so I suspect you are right to question your virtualizer. 

Kind Regards

S

[stdean]

Thanks for the quick reply.

I really do suspect that it's ESX somehow 'ignoring' the jumpers, but it really does seem like such a strange thing to do. I plan directing the same question towards digium, but was also hoping that someone on here might have had some experience with a Digium card and ESX before.

Conor