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I have to setup a server to route telephone calls coming to a particular landline no to cell phone phones depending upon the availability of user.

I want to know what technology call centres or telecom giants use for the same. While exploring some such options I came across following

1) 2)

Let me know if these are what will serve my purpose. Also let me know what hardware I might need along with setting up of such servers. What keywords should I exactly Google.We use Ubuntu servers in our environment.

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If the routing/relationship is across multiple/different carriers, then "availability" is usually not possible and the only options are typically along:

  • Simultaneous ringing
  • Sequential ringing/forwarding (follow-me)
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so do let me know how,what keywords should I google.Any advice of yours will have value to me. – Registered User Jul 15 '11 at 9:32
How about - "Simultaneous ringing", "Sequential ringing", "Sequential forwarding"... – user48838 Jul 15 '11 at 9:38
Thanks I am Googling and comment back. – Registered User Jul 15 '11 at 9:41
I am able to follow your tips also let me know if there are 10 different mobile phones and I Want to outgoing call to appear as if it came from same number (office kind of ) then what keyword I should search or what technology will help me. – Registered User Jul 15 '11 at 9:45
Not sure what you asking, but Caller-ID information will usually not forward across systems. – user48838 Jul 15 '11 at 9:55

u need google for voip DID, sip provider, callerid

for large setups better use something like to setup it u need hi-level voip administrator

for low load use asterisk (software pbx). i higly not recomend u use YATE.

if u want CALLERID changable, u need ask ur sip/did provider about posibility to show CID on mobile calls.

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