AudioCodes Mediant 800B - Page 466

User's Manual 466 Document #: LTRT-10632
Mediant 800B Gateway & E-SBC
Parameter Description
which must be set to any value other than 2.
 See also the IgnoreAlertAfterEarlyMedia parameter. The parameter
allows, for example, to interwork Alert with PI to SIP 183 with SDP
instead of 180 with SDP.
 You can also configure early SIP 183 response immediately upon
the receipt of an INVITE, using the EnableEarly183 parameter.
 Analog: To send a 183 response, you must also set the
ProgressIndicator2IP parameter to 1. If set to 0, a 180 Ringing
response is sent.
 The corresponding global parameter is EnableEarlyMedia.
Early 183
enable-early-183
[IpProfile_EnableEarly183]
Enables the device to send SIP 183 responses with SDP to the IP
upon receipt of INVITE messages.
 [0] Disable (default)
 [1] Enable = By sending the 183 response, the device opens an
RTP channel before receiving the "progress" tone from the ISDN
side. The device sends RTP packets immediately upon receipt of
an ISDN Progress, Alerting with Progress indicator, or Connect
message according to the initial negotiation without sending the
183 response again, thereby saving response time and avoiding
early media clipping.
Note:
 The parameter is applicable only to IP-to-Tel ISDN calls, and
applies to all calls.
 To enable this feature, set the EnableEarlyMedia parameter to 1.
 When the BChannelNegotiation parameter is set to Preferred or
Any, the EnableEarly183 parameter is ignored and a SIP 183 is not
sent upon receipt of an INVITE. In such a case, you can set the
ProgressIndicator2IP parameter to 1 (PI = 1) for the device to send
a SIP 183 upon receipt of an ISDN Call Proceeding message.
 The corresponding global parameter is EnableEarly183.
Early Answer Timeout
early-answer-timeout
[IpProfile_EarlyAnswerTimeo
ut]
Defines the duration (in seconds) that the device waits for an ISDN
Connect message from the called party (Tel side), started from when it
sends a Setup message. If this timer expires, the call is answered by
sending a SIP 200 OK message (to the IP side).
The valid range is 0 to 2400. The default is 0 (i.e., disabled).
Note:
 The parameter is applicable only to digital interfaces.
 The corresponding global parameter is EarlyAnswerTimeout.
Profile Preference
ip-preference
[IpProfile_IpPreference]
Defines the priority of the IP Profile, where 20 is the highest priority
and 1 the lowest priority.
Note:
 If an IP Profile and a Tel Profile apply to the same call, the coders
and other common parameters of the profile with the highest
preference are applied to the call. If the preference of the profiles is
identical, the Tel Profile parameters are applied.
 If the coder lists of both an IP Profile and a Tel Profile apply to the
same call, only the coders common to both are used. The order of
the coders is determined by the preference.
 The parameter is applicable only to the Gateway application.
Coders Group Assigns a Coder Group, which defines audio coders supported by the