In australia, I would usually suggest a mix of E1 and SIP for calls - it doesn't cost any money to receive calls via E1, and redundancy is an old, valuable friend of mine.
PaulH Stephen Fierbaugh (PBT) wrote: > I am a Linux sysadmin who has been tasked with developing the phone > system for our nonprofit's new US headquarters building. We cannot > bring our legacy phone system with us, so I am building this completely > from scratch. I have already read "Asterisk: The Future of Telephony" > and done a fair amount of googling. I am completely sold on Asterisk, > and the new building's phones will be a mix of SIP handsets and softphones. > > I am confused about one thing: Should we be getting a block of analog > circuits from the local telco (probably AT&T), connected to the server's > FXO cards for in-bound and out-bound POTS calls; or should we get a > block of DIDS numbers from one of the plethora of providers available > over the Internet, and then have our server connect POTS calls by IAX to > the DIDS provider? > > We are unsure whether we are going to have separate numbers for everyone > in the organization, or just 1 US phone number, with everyone in the org > having their own extension number. That probably largely depends upon cost. > > We will have 75 people in the building. We have no data on call > patterns or usage (because our legacy system belongs to our current > facilities host), but we currently have 4 lines for 35 people and on > unusual occasions they all get busy. > > An additional consideration is that we also have 300 other people > scattered literally world-wide, and the next logical future step is to > start providing VOIP links for them, as well. > > Thanks in advance for your advice. Any other suggestions, such as # of > lines sizing info or reputable DIDS vendors (if that's the answer) are > also appreciated. > > _______________________________________________ -- 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
