AudioCodes Mediant 500L - Page 1227

Version 7.2 1227 Mediant 500L Gateway & E-SBC
User's Manual 69. Configuration Parameters Reference
Parameter Description
and enabled for operating in the Skype for Business
environment. Once registered, all subsequent calls (i.e.,
INVITE messages) received from the analog device or
destined to it are processed by the SBC.
Note: The parameter is applicable only to analog interfaces.
Handle P-Asserted-Identity
configure voip > sbc settings > p-
assert-id
[SBCAssertIdentity]
Global parameter that defines the handling of the SIP P-
Asserted-Identity header. You can also configure this
functionality per specific calls, using IP Profiles
(IpProfile_SBCAssertIdentity). For a detailed description of the
parameter and for configuring this functionality in the IP
Profiles table, see ''Configuring IP Profiles'' on page 438.
Note: If this functionality is configured for a specific IP Profile,
the settings of this global parameter is ignored for calls
associated with the IP Profile.
Keep original user in Register
configure voip > sbc
settings > keep-contact-
user-in-reg
[SBCKeepContactUserinRegister]
Defines the device's handling of the SIP Contact header in
REGISTER requests which it forwards as the outgoing
message.
 [0] Do not keep user; override with unique identifier =
(Default) The device replaces the user part of the Contact
header with a unique value, for example:

Incoming Contact Header: <sip:123@domain.com>

Outgoing Contact Header: <sip:FEU1-7-1-3@SBC>
 [1] keep user without unique identifier = The device retains
the original user part value of the Contact header in the
outgoing REGISTER request.

[2] Keep user; add unique identifier as URI parameter = The
device retains the original user part value of the Contact
header in the outgoing REGISTER request. In addition, it
adds the special URI parameter "ac-feu=<identifier>" to the
Contact header, which is used to differentiate between two
SIP entities with the same user part. The identifier value is
generated by the device.

Incoming Contact Header: <sip:123@domain.com>

Outgoing Contact Header: <sip:123@SBC;ac-feu=1-7-
1-3>
Note:
 The parameter is applicable only to REGISTER messages
received from User-type IP Groups which are sent to
Server-type IP Groups.
 Depending on the 'Remote Representation Mode'
parameter of the IP Profiles table
(IpProfile_SBCRemoteRepresentationMode), the host part
in the SIP Contact header can replaced by the device’s IP
address or by the value of the 'SIP Group Name' parameter
(configured in the IP Groups table).
SBC Remote Refer Behavior
configure voip > sbc settings > sbc-
refer-bhvr
[SBCReferBehavior]
Global parameter that defines the handling of SIP REFER
requests. You can also configure this functionality per specific
calls, using IP Profiles (IpProfile_SBCRemoteReferBehavior).
For a detailed description of the parameter and for configuring
this functionality in the IP Profiles table, see ''Configuring IP
Profiles'' on page 438.