There are quite a few reasons that will stop you using VoIP. I am trying to list few of them :VoIP has reliablility issues. Power failure, network failure, router or switch failure are just few reasons that will cause hinderance to proper use of VoIP phone.VoIP is offcourse cost effecive but if you are switching from other communication service to VoIP Phone service than you may have to buy new equipment.
All these VoIP switches and routers cost a lot. Then there are network installation, maintenance & customer support charges.Then you have other options available with you such as G talk and skype which offer free softwares.
- Poor Voice quality.
- VoIP is not secure. You may get prone to virus, bugs or eavesdropper threats occasionaly.
- Still there is a lot of confusion around VoIP Phone service as VoIP service providers need to educate comman people about VoIP.