This document compares SAAS (Software as a Service) and PAAS (Platform as a Service) models for cloud telephony. SAAS offers pre-deployed telephony applications that are easier to use but less flexible, while PAAS uses VXML (Voice XML) to provide APIs for developers to build custom voice applications, offering more control but higher costs. Overall, SAAS provides better data security, uptime, and support while PAAS allows for more flexibility and lower per-call costs. Both have tradeoffs between ease of use and flexibility.

1. SAAS VS. PAAS
Comparison on Cloud Telephony
By Ankit Jain
Founder, VoiceTree

2. CLOUD TELEPHONY OVERVIEW
• Cloud Telephony enables a company to
setup its own business telephone system
without buying any hardware i.e. over
cloud.

3. SAAS - PACKAGED TELEPHONY
Packaged Cloud Telephony are solutions for
end users to access pre-deployed telephony
applications as service, without the hurdle of
any technology deployment.

4. PAAS - VXML
VXML based cloud telephony platform lets
developers access telephony platform as
service via specialized XML structure and
deploy custom voice application

5. COMPARISON – EASE OF USE
Packaged cloud telephony provides ease of use
for end users as it does not require any
technical expertise to setup
• SAAS +
• PAAS -

6. COMPARISON – FLEXIBILITY/CONTROL
VXML based cloud telephony provides APIs to
develop own telephony platform hence offers
better control than Packaged solution
• SAAS -
• PAAS +

7. COMPARISON – COST
VXML based cloud telephony offers lower cost
API calls in comparison to packaged telephony
but over all cost is higher with VXML, for
deploying and maintaining your application
• SAAS +
• PAAS -

8. COMPARISON – DATA SECURITY
Packaged Telephony offers complete security of
data managed under same service package
hence is preferred for data security
• SAAS +
• PAAS -

9. COMPARISON – SERVICE UPTIME
Packaged Telephony offers complete package
of solutions in single window hence offers higher
uptime than VXML based application, where
applications have more than one layer of service
• SAAS +
• PAAS -

10. COMPARISON – SUPPORT
Packaged Telephony offers higher level of
support as a single window of customer service
is offered
• SAAS +
• PAAS -

11. TRADEOFF
• SAAS and PAAS telephony services have
tradeoff on ease of use and flexibility
• SAAS is preferred by end consumers while
PAAS is the choice of developers for better
control

12. ABOUT VOICETREE
• VoiceTree Technologies was set up to address the barrier
of adoption of telephony solution by end user through
packaged cloud telephony solutions
• Through its comprehensive suite of packaged cloud
telephony solutions, VoiceTree is set to realize the dream
of making telephony solutions consumable by masses.