Things that effect cost

Many IVR systems can support speech recognition and

touchtone signaling but speech recognition can be substantially

more costly. If you choose speech recognition, make sure that

your system can switch to “touchtone only” for those callers who

are unable to speak clearly.

IVRs can be connected by either digital or IP pathways. IP

pathways provide a better option where multiple IVR applications

are needed, because the IVR can be reached from anywhere on

the network. (For example: Supporting both a sales application

and a service application located in different building, on the

same system.)

Adding additional applications to an IVR system usually can

be done for the additional cost of software alone. Most IVR

systems can handle a substantial  volume of traffic.

One advantage to premise based systems is that since you

own the software, you can put it on multiple computers to create

a redundant IVR environment.