In article <[EMAIL PROTECTED]>, Steve Totaro <[EMAIL PROTECTED]> wrote: > Tony Mountifield wrote: > > I have a client who wants a Meetme box with 12 FXO ports, to connect > > to Analogue lines coming from an Ericsson PBX. > > > > It looks like I could do this with four different hardware configurations: > > > > a) three TDM04B cards (based on TDM400P) > > b) one TDM04B and one TDM808B > > c) one TDM804B (or TDM854B?) and one TDP808B > > d) one TDM2403B (half filled TDM2400P) > > > > Apart from considerations of cost and PCI slot availability, are there any > > technical reasons to choose one of the above configurations over the others? > > > > Cheers > > Tony > > > If the Ericsson PBX has a T1 card already and you have one in your > asterisk box, that would be the cleanest way of acheiving what you > want.
We always try to use E1/T1 where possible, but this customer specifically wanted to interface to a bunch of analogue ports, so I assume T1 is not an option in this case. > You could also use a channel bank with the analog and convert to > T1 for the Asterisk connection. > > I try to use T1 (PRI if possible) whenever more than four analog trunks > will be involved. I have had tons of bad experiences with analog cards, > very few with ISDN. I have no experience of channel banks, but I expect that for 12 ports a channel bank and a TE110P would work out more expensive than a half populated TDM2400P. Thanks to all the others that contributed to this thread too.. Cheers Tony -- Tony Mountifield Work: [EMAIL PROTECTED] - http://www.softins.co.uk Play: [EMAIL PROTECTED] - http://tony.mountifield.org _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users