RE: carrier grade fax boards?

[Ryan Finnesey <ryan () finnesey com>]

Fax hardware/boards that other members have used  within service provider environments to deliver services to their end 
users .  

-----Original Message-----
From: Valdis.Kletnieks () vt edu [mailto:Valdis.Kletnieks () vt edu] 
Sent: Thursday, April 28, 2016 2:36 AM
To: Ryan Finnesey <ryan () finnesey com>
Cc: nanog () nanog org
Subject: Re: carrier grade fax boards?

On Thu, 28 Apr 2016 04:30:23 -0000, Ryan Finnesey said:
> I was wondering if anyone had any recommendations on carrier grade fax 
> boards that are SIP based?

What would "carrier grade" even *mean* for a fax board?