AudioCodes Mediant 3000 User Manual page 345

User's Manual
Parameter
Web: RFC 2833 Behavior
[IpProfile_SBCRFC2833Behavior
]
Web: Alternative DTMF Method
[IpProfile_SBCAlternativeDTMFM
ethod]
Web: P-Asserted-Identity
[IpProfile_SBCAssertIdentity]
Version 6.8
two media lines - one RTP and the other SRTP.
If two SBC legs (after offer\answer negotiation) use different
security types (i.e., one RTP and the other SRTP), the device
performs RTP-SRTP transcoding. To transcode between RTP
and SRTP, the following prerequisites must be met:

At least one supported SDP "crypto" attribute and parameters.

EnableMediaSecurity must be set to 1.
If one of the above transcoding prerequisites is not met, then:

any value other than "As is" is discarded.

if the incoming offer is SRTP, force transcoding, coder
transcoding, and DTMF extensions are not applied.
Defines the handling of RFC 2833 SDP offer\answer negotiation
for this SIP entity.

[0] As is = (Default) The device does not intervene in the RFC
2833 negotiation.

[1] Extend = Each outgoing offer\answer includes RFC 2833
in the offered SDP (the device adds RFC 2833 only if the
incoming offer does not include RFC 2833).

[2] Disallow = The device removes RFC 2833 from the
incoming offer.
Note: If the device interworks between different DTMF methods
and one of the methods is in-band DTMF packets (RFC 2833),
detection and generation of DTMF methods requires DSP
resources.
The device's first priority for DTMF method at each leg is RFC
2833. Thus, if the device successfully negotiates RFC 2833 for
this SIP entity, the chosen DTMF method for this leg is RFC
2833. When RFC 2833 negotiation fails, the device uses this
parameter to define the DTMF method for the leg.

[0] As Is = (Default) The device does not attempt to interwork
any special DTMF method.

[1] In Band

[2] INFO - Cisco

[3] INFO - Nortel

[4] INFO - Lucent = INFO, Korea
Note: If the device interworks between different DTMF methods
and one of the methods is in-band DTMF packets (RFC 2833),
detection and generation of DTMF methods requires DSP
resources.
Defines the device's handling of the SIP P-Asserted-Identity
header for this SIP entity. This header indicates how the outgoing
SIP message asserts identity.

[0] As Is = (Default) P-Asserted Identity header is not affected
and the device uses the same P-Asserted-Identity header (if
present) in the incoming message for the outgoing message.

[1] Add = Adds a P-Asserted-Identity header. The header's
values are taken from the source URL.

[2] Remove = Removes the P-Asserted-Identity header.
Notes:

This parameter affects only the initial INVITE request.

The corresponding global parameter is SBCAssertIdentity.
345
20. Coders and Profiles
Description
Mediant 3000