Version 7.2 1111 Mediant 1000B Gateway & E-SBC
User's Manual 65. Configuration Parameters Reference
Parameter Description
bypass mode, Named Signaling Event (NSE) packets. You can also
configure this functionality per specific calls, using IP Profiles
(IpProfile_NSEMode). For a detailed description of the parameter
and for configuring this functionality in the IP Profiles table, see
''Configuring IP Profiles'' on page
423.
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.
NSE-payload-type
[NSEPayloadType]
Defines the NSE payload type for Cisco Bypass compatible mode.
The valid range is 96-127. The default is 105.
Note:
The parameter is applicable only to the Gateway application.
Cisco gateways usually use NSE payload type of 100.
configure voip > sip-definition
settings > t38-use-rtp-port
[T38UseRTPPort]
Defines the port (with relation to RTP port) for sending and receiving
T.38 packets.
[0] = (Default) Use the RTP port +2 to send/receive T.38 packets.
[1] = Use the same port as the RTP port to send/receive T.38
packets.
Note:
For the parameter to take effect, you must reset the device.
When the device is configured to use V.152 to negotiate audio
and T.38 coders, the UDP port published in SDP for RTP and for
T38 must be different. Therefore, set the T38UseRTPPort
parameter to 0.
T.38 Max Datagram Size
configure voip > sip-definition
settings > t38-mx-datagram-sz
[T38MaxDatagramSize]
Defines the maximum size of a T.38 datagram that the device can
receive. This value is included in the outgoing SDP when T.38 is
used.
The valid range is 120 to 600. The default is 238.
T38 Fax Max Buffer
configure voip > sip-definition
settings > t38-fax-mx-buff
[T38FaxMaxBufferSize]
Defines the maximum size (in bytes) of the device's T.38 buffer. This
value is included in the outgoing SDP when T.38 is used for fax relay
over IP.
The valid range is 500 to 3000. The default is 1024.
Detect Fax on Answer Tone
det-fax-on-ans-tone
[DetFaxOnAnswerTone]
Determines when the device initiates a T.38 session for fax
transmission.
[0] Initiate T.38 on Preamble = (Default) The device to which the
called fax is connected initiates a T.38 session on receiving
HDLC Preamble signal from the fax.
[1] Initiate T.38 on CED = The device to which the called fax is
connected initiates a T.38 session on receiving a CED answer
tone from the fax. This option can only be used to relay fax
signals, as the device sends T.38 Re-INVITE on detection of any
fax/modem Answer tone (2100 Hz, amplitude modulated 2100
Hz, or 2100 Hz with phase reversals). The modem signal fails
when using T.38 for fax relay.
Note: The parameters is applicable only if the IsFaxUsed parameter
is set to 1 (T.38 Relay) or 3 (Fax Fallback).
T.38 Fax Session
configure voip > sip-definition
Enables fax transmission of T.38 "no-signal" packets to the
terminating fax machine.
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