BOL SIP SoftPhone
BOL H.323 Softphone
BOL ePenetrator
BOL B2BUA Real-time RADIUS Billing
BOL ePenetrator

Features:

ePenetrator is a Session Border Controller with encryption function.
Here is her features:

NAT traversal
CAN traverse symmetric NAT that STUN CANNOT traverse.

NAT keepalive
This mechanism can make your softphone inside NAT available to the internet but still secure to the attackers.

Configurable media (audio, video) relay option media can be optionally chosen to not relay if the UA is under the same NAT, this reduce the load of your server.

URI rewrite,
can fix the From, To, Request URI of the UA, make UAs which don't support outbound proxy be still useful.

Signal, Media Encryption Enable services where VOIP are blocked.

Compatible
No modification on your current system.

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