AudioCodes Mediant 1000

Version 7.2 417 Mediant 1000B Gateway & E-SBC
User's Manual 19. Coders and Profiles
Parameter Description
parameter).
 [1] Single coder = (Default) Use only one coder. If the incoming
answer (from the called "fax") includes a coder that matches a
coder match between the incoming offer coders (from the calling
"fax") and the coders of the selected Coder Group
(SBCFaxCodersGroupID, then the device uses this coder. If no
match exists, the device uses the first listed coder of the matched
coders between the incoming offer coders (from the calling "fax")
and the coders of the selected Coder Group.
Note: The parameter is applicable only if you set the
IpProfile_SBCFaxBehavior parameter to a value other than [0].
Remote Renegotiate on Fax
Detection
sbc-rmt-renegotiate-on-fax-
detect
[IPProfile_SBCRemoteReneg
otiateOnFaxDetection]
Enables local handling of fax detection and negotiation by the device
on behalf of the SIP entity associated with the IP Profile. This applies
to faxes sent immediately upon the establishment of a voice channel
(i.e., after 200 OK).
The device attempts to detect the fax (CNG tone) from the
originating SIP entity within a user-defined interval (see the
SBCFaxDetectionTimeout parameter) immediately after the voice
call is established.
Once fax is detected, the device can handle the subsequent fax
negotiation by sending re-INVITE messages to both SIP entities. The
device also negotiates the fax coders between the two SIP entities.
The negotiated coders are according to the list of fax coders
assigned to each SIP entity, using the IP Profile parameter 'Fax
Coders Group'.
 [0] Transparent = (Default) Device does not interfere in the fax
transaction and assumes that the SIP entity fully supports fax
renegotiation upon fax detection.
 [1] Only on Answer Side = The SIP entity supports fax
renegotiation upon fax detection only if it is the terminating
(answering) fax, and does not support renegotiation if it is the
originating fax.
 [2] No = The SIP entity does not support fax re-negotiation upon
fax detection when it is the originating or terminating fax.
Note:
 This feature is applicable only when both SIP entities do not fully
support fax detection (receive or send) and negotiation: one SIP
entity must be assigned an IP Profile where the parameter is set
to [1] or [2], while the peer SIP entity must be assigned an IP
Profile where the parameter is set to [2].
 This feature is supported only if at least one of the SIP entities
use the G.711 coder.
 This feature utilizes DSP resources. If there are insufficient
resources, the fax transaction fails.
Media
Broken Connection Mode
disconnect-on-broken-
connection
[IpProfile_DisconnectOnBroke
nConnection]
Defines the device's handling of calls when RTP packets (media) are
not received within a user-defined timeout interval (configured by the
BrokenConnectionEventTimeout parameter). The interval can be
during call setup (configured by the NoRTPDetectionTimeout
parameter) or mid-call when RTP flow suddenly stops (configured by
the BrokenConnectionEventTimeout parameter).