Product specifications

Dialogic® BorderNet™ 4000 SBC Product Description Document
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negotiation with the H.323 endpoint to reach a point where the SDP can be
generated. When the SDP is generated, then the BorderNet 4000 SBC sends a 183
provisional response.
Early media is also supported for H.323-to-SIP calls. In this case, when SDP is received
from the SIP endpoint in either a 180 or 183 message, an appropriate message is generated
to H.323 with a progress indicator of 8.
Response Code Mapping
The BorderNet 4000 SBC maps two response codes:
• SIP response codes are mapped to H.225 release codes used by H.323
• H.225 release codes are mapped to SIP response codes
If a downstream SIP endpoint rejects a call, the response is translated into the H.225
release code set for the upstream H.323 device.
If a downstream H.323 endpoint rejects a call, either the H.323 gatekeeper rejects the call
or the endpoint sends a Release Complete message to reject the call. This is translated to
the appropriate SIP response code.
Calling Line Identification
The BorderNet 4000 SBC supports mapping between H.323 message presentation indicators
and SIP Privacy and P-Asserted-Id headers. This supports CLIP/CLIR features.