PC-2-Phone: H323 compliant
softphone, NAT traveral
Device-2-Phone: multi-vendor
H323 devices. e.g. Cisco, Quintum, Welltech,
Antek, etc.
Call-Back System: Web-based,
SMS, ANI Call backs
AAA Billings: Online CDR, for
ITSPs, call shops
Softswitch: To redirect traffics
to different terminating Gateways and support
NAT traversal for endpoints
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