Class 4 softswitches are used by wholesale providers and carriers to route large volumes of long distance and wholesale call traffic between multiple IP networks, while Class 5 softswitches are used by retail providers and end-users to route local call traffic to specific IP addresses, SIP addresses or DIDs of individual users handling smaller call volumes over smaller areas. The key differences are that Class 4 softswitches deal with wholesale call traffic and route calls over larger areas and networks, while Class 5 softswitches deal with retail call traffic and route calls locally.

1. DIFFERENCE BETWEEN CLASS 4 AND
CLASS 5 SOFTSWITCH
Call authentication
Billing and Routing
IVR
Call-back, Call-transfer, Call-holding, Call-forking
Analog-to-digital conversion
Support for Codec, Media transcoding
F E A T U R E S O F C L A S S 4 A N D C L A S S 5
S O F T S W I T C H
Flexible UI (user interface)
Intelligent call routing
Billing interface including CDR
Secured firewall
Filtered Third party routing engine
Protocol support and conversion
D I F F E R E N C E I N C L A S S 4 A N D C L A S S 5
S O F T S W I T C H
www.revesoft.com
The VoIP telecommunication software which connects multiple phone calls
across telecom network as well as over internet connection.
CLASS 4 SOFTSWITCH CLASS 5 SOFTSWITCH
CLASS 4 SOFTSWITCH CLASS 5 SOFTSWITCH
Supports long distance call routing
(routes to multiple IP network)
Used for local call routing (routes to
correct IP address, SIP address, or
DID number of an end-user)
Deals with wholesale call traffic
and hence a wholesale solution
Deals with retail call traffic and
hence a retail solution
Routes large volume of call traffic Routes less volume of calls in
relatively small areas
Routes large volume of call traffic Routes large volume of call traffic
Class 4 softswitch is used by
wholesale VoIP providers, Telco,
carriers
End- Users and retail VoIP service
Providers both use Class 5
softswitch
AREA COVERED
CALL TRAFFIC TYPE
CALL TRAFFIC VOLUME
ROUTING DESTINATION
USER BASE
CORPORATE OFFICE
W C E G A T O W E R , 2 1 B U K I T B A T O K C R E S C E N T
U N I T 1 5 - 8 4 , S I N G A P O R E 6 5 8 0 6 5
PHONE: +65 3157 5040 EMAIL: INFO@REVESOFT.COM FAX: +65 6491 5550