AudioCodes Mediant 1000 User Manual page 65

SIP User's Manual
Table 5-3: Protocol Definition, General Parameters (continues on pages 64 to 70)
Parameter
Minimum Session-Expires
[MINSE]
Session Expires Method
[SessionExpiresMethod]
Asserted Identity Mode
[AssertedIdMode]
Fax Signaling Method
[IsFaxUsed]
Detect Fax on Answer Tone
[DetFaxOnAnswerTone]
Version 5.0
Description
Defines the time (in seconds) that is used in the Min-SE header. This header
defines the minimum time that the user agent supports for session refresh.
The valid range is 10 to 100000. The default value is 90.
Defines the SIP method used for session-timer updates.
Re-INVITE [0] = Use Re-INVITE messages for
(default)
.
UPDATE [1] = Use UPDATE messages.
Note 1: The gateway can receive session-timer refreshes using both methods.
Note 2: The UPDATE message used for session-timer purposes is not included in
the SDP body.
Disable [0] = None (default).
Adding PAsserted Identity [1].
Adding PPreferred Identity [2].
The Asserted ID mode defines the header that is used in the generated INVITE
request. The header also depends on the calling Privacy: allowed or restricted.
The P-asserted (or P-preferred) headers are used to present the originating party's
Caller ID. The Caller ID is composed of a Calling Number and (optionally) a
Calling Name.
P-asserted (or P-preferred) headers are used together with the Privacy header. If
Caller ID is restricted, the 'Privacy: id' is included. Otherwise for allowed Caller ID
the 'Privacy: none' is used. If Caller ID is restricted (received from Tel or
configured in the gateway), the From header is set to
<anonymous@anonymous.invalid>.
Determines the SIP signaling method used to establish and convey a fax session
after a fax is detected.
No Fax [0]
T.38 Relay [1]
G.711 Transport [2]
adaptations (refer to note 1).
Fax Fallback [3]
gateway re-initiates a fax session using the coder G.711 A-law/µ-law with
adaptations (see note 1).
Note 1: Fax adaptations:
Echo Canceller = On
Silence Compression = Off
Echo Canceller Non-Linear Processor Mode = Off
Dynamic Jitter Buffer Minimum Delay = 40
Dynamic Jitter Buffer Optimization Factor = 13
Note 2: If the gateway initiates a fax session using G.711 (option 2 and possibly
3), a 'gpmd' attribute is added to the SDP in the following format:
For A-law: 'a=gpmd:0 vbd=yes;ecan=on'. For µ-law: 'a=gpmd:8
vbd=yes;ecan=on'.
Note 3: When 'IsFaxUsed' is set to 1, 2 or 3 the parameter 'FaxTransportMode' is
ignored.
Note 4: When the value of IsFaxUsed is other than 1, T.38 might still be used
without the control protocol's involvement. To completely disable T.38, set
FaxTransportMode to a value other than 1.
Initiate T.38 on Preamble [0] = Terminating fax gateway initiates T.38 session on
receiving of HDLC preamble signal from fax (default)
Initiate T.38 on CED
receiving of CED answer tone from fax.
Note: This parameters is applicable only if 'IsFaxUsed = 1'.
session-timer updates
= No fax negotiation using SIP signaling (default).
= Initiates T.38 fax relay.
= Initiates fax using the coder G.711 A-law/µ-law with
= Initiates T.38 fax relay. If the T.38 negotiation fails, the
[1] = Terminating fax gateway initiates T.38 session on
65
5. Web Management
December 2006