AudioCodes Mediant 800B - Page 1140

User's Manual 1140 Document #: LTRT-10632
Mediant 800B Gateway & E-SBC
Parameter Description
Enable Contact Restriction
contact-restriction
[EnableContactRestriction]
Determines whether the device sets the Contact header of outgoing
INVITE requests to ‘anonymous’ for restricted calls.
 [0] Disable (default)
 [1] Enable
configure voip > sip-
definition settings >
anonymous-mode
[AnonymousMode]
Determines whether the device's IP address is used as the URI host
part instead of "anonymous.invalid" in the INVITE's From header for
Tel-to-IP calls.
 [0] = (Default) If the device receives a call from the Tel with blocked
caller ID, it sends an INVITE with
From: “anonymous”<anonymous@anonymous.invalid>
 [1] = The device's IP address is used as the URI host part instead
of "anonymous.invalid".
The parameter may be useful, for example, for service providers who
identify their SIP Trunking customers by their source phone number or
IP address, reflected in the From header of the SIP INVITE. Therefore,
even customers blocking their Caller ID can be identifie
d by the service
provider. Typically, if the device receives a call with blocked Caller ID
from the PSTN side (e.g., Trunk connected to a PBX), it sends an
INVITE to the IP with a From header as follows: From: “anonymous”
<anonymous@anonymous.invalid>. This is in accordance with RFC
3325. However, when the parameter is set to 1, the device replaces
the "anonymous.invalid" with its IP address.
configure voip > sip-
definition settings > p-
assrtd-usr-name
[PAssertedUserName]
Defines a 'representative number' (up to 50 characters) that is used as
the user part of the Request-URI in the P-Asserted-Identity header of
an outgoing INVITE for Tel-to-IP calls.
The default is null.
configure voip > sip-
definition settings >
use-aor-in-refer-to-
header
[UseAORInReferToHeader]
Defines the source for the SIP URI set in the Refer-To header of
outgoing REFER messages.
 [0] = (Default) Use SIP URI from Contact header of the initial call.
 [1] = Use SIP URI from To/From header of the initial call.
Enable User-Information
Usage
configure voip > sip-
definition settings > user-inf-
usage
[EnableUserInfoUsage]
Enables the usage of the User Information, which is loaded to the
idevice> in the User Information Auxiliary file. For more nformation on
User Information, see 'User Information File' on page 847.
 [0] Disable (default)
 [1] Enable
Note: For the parameter to take effect, a device reset is required.
configure voip > sip-
definition settings >
handle-reason-header
[HandleReasonHeader]
Determines whether the device uses the value of the incoming SIP
Reason header for Release Reason mapping.
 [0] = Disregard Reason header in incoming SIP messages.
 [1] = (Default) Use the Reason header value for Release Reason
mapping.
[EnableSilenceSuppInSDP] Determines the device's behavior upon receipt of SIP Re-INVITE
messages that include the SDP's 'silencesupp:off' attribute.
 [0] = (Default) Disregard the 'silecesupp' attribute.
 [1] = Handle incoming Re-INVITE messages that include the
'silencesupp:off' attribute in the SDP as a request to switch to the
Voice-Band-Data (VBD) mode. In addition, the device includes the
attribute 'a=silencesupp:off' in its SDP offer.