Lets face it, VOIP has been 'muscling in' on conventional telecoms for some time - here are some of the reasons why:
1. Low Cost Landline Calls - VOIP call carriers offer low call rates or free national calls.
2. Low Mobile Rates - Using VOIP PBX with GSM gateways.
3. Low Cost International Calls - as most of the distance of the call will be carried via the web.
4. Reduced Line Rentals - many VOIP call carriers offer unlimited outbound trunks which could cut your line rental fees.
5. Home Workers & Branch Office Calls Free - if you switch these users to VOIP calls to these users will be free.
6. Much Longer Call Recording - record more calls over longer periods.
7. Keep Your Number - by porting geographic numbers to voip you can move your business anywhere without changing numbers.
8. Automatic Divert on any failure - your calls will automatically redirect should your PBX or lines fail
9. Short Contracts - many ITSPs have very short contracts without tie-ins.
10. More Control - apply your own call diverts and modify your phone system remotely
Businesses using VOIP should not see any difference in call quality if the setup is good - see voip call quality for more info. The path to success may not always be smooth as telephone service providers may create number porting delays & quality of internet connections will vary with location. The experience or inexperience of your installer will play a big part in the success or failure of your migration - get references!.