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How to Select the Right Approach to VoIP: Communications-as-a-Service Solutions
11 September 2006
 
Bjarne Munch   David A. Willis  

Enterprises considering voice over IP must choose among a confusing array of technology and service options. This research examines five major service-provider-based "communications-as-a-service" scenarios for implementing IP telephony.




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Pages: 9






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Table of Contents


    
 Analysis

1.0
    
 Self-Managed Solutions — 'Build'
2.0
    
 Provider-Assisted Solutions — 'Build With Help'

2.1
    
 Outsourced IP PBX Service Scenario
2.2
    
 Hosted IP PBX Service Scenario
2.3
    
 IP Centrex Service Scenario
2.4
    
 Voice Over Broadband Service Scenario
2.5
    
 Personal Internet Telephony Scenario
3.0
    
 Summary and Recommendations

    
 Recommended Reading


List of Tables


Table 1.  
 Advantages and Disadvantages of Outsourced IP PBX Services
 

Table 2.  
 Advantages and Disadvantages of Hosted IP PBX Services
 

Table 3.  
 Advantages and Disadvantages of IP Centrex Services
 

Table 4.  
 Advantages and Disadvantages of Voice Over Broadband Services
 

Table 5.  
 Advantages and Disadvantages of PIT services
 

List of Figures


Figure 1. 
 Outsourced IP PBX Service Scenario
 

Figure 2. 
 Hosted IP PBX Service Scenario
 

Figure 3. 
 IP Centrex Service Scenario
 

Figure 4. 
 Voice Over Broadband Service Scenario
 

Figure 5. 
 Personal Internet Telephony Scenario
 



Browse Topics:
 
Network Service Providers
VoIP
Evaluation and Selection
Wireline Broadband Services
Managed/Hosted IP-PBX
Communications as a Service
IP Centrex




© 2006 Gartner, Inc. and/or its Affiliates. All Rights Reserved. Reproduction and distribution of this publication in any form without prior written permission is forbidden. The information contained herein has been obtained from sources believed to be reliable. Gartner disclaims all warranties as to the accuracy, completeness or adequacy of such information. Although Gartner's research may discuss legal issues related to the information technology business, Gartner does not provide legal advice or services and its research should not be construed or used as such. Gartner shall have no liability for errors, omissions or inadequacies in the information contained herein or for interpretations thereof. The opinions expressed herein are subject to change without notice.




Resource Id: 496316