OSP Clearinghouse comparison This topic has 0 replies, 1 voice, and was last updated 22 years, 11 months ago by James. Viewing 1 post (of 1 total) Author Posts 2nd February 2002 at 11:47 #21194 JamesGuest We have Cisco AS5300s and want to use them for an OSP solution. We would like advice on which OSP we should consider: TransNexus, Concert or Gric. Author Posts Viewing 1 post (of 1 total) The forum ‘Voice over IP’ is closed to new topics and replies.