AudioCodes Mediant 500L User Manual page 1177

User's Manual
Parameter
early-answer-timeout
[EarlyAnswerTimeout]
ISDN Transfer Capabilities
configure voip > interface
e1-t1|bri > isdn-xfer-cab
[ISDNTransferCapability_x]
[TransferCapabilityForDataC
alls]
configure voip > gateway
dtmf-supp-service supp-
service-settings > isdn-xfer-
complete-timeout
[ISDNTransferCompleteTim
eout]
Enable Network ISDN
Transfer
configure voip > sip-
definition settings > network-
isdn-xfer
[EnableNetworkISDNTransf
er]
[DisableFallbackTransferTo
TDM]
Version 7.2
4ESS ISDN variant, the ISDNGeneralCCBehavior parameter must
be set to 16384.
Global parameter that 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. You can also configure
this functionality per specific calls, using IP Profiles
(IpProfile_EarlyAnswerTimeout). 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.
Defines the IP-to-ISDN Transfer Capability of the Bearer Capability IE
in ISDN Setup messages, per trunk (where the x in the ini file
parameter name denotes the trunk number and where 0 is Trunk 1).

[-1] Not Configured

[0] Audio 3.1 (default)

[1] Speech

[2] Data

[3] Audio 7
Note: If the parameter is not configured or set to -1, Audio 3.1
capability is used.
Defines the ISDN Transfer Capability for data calls.

[0] = (Default) ISDN Transfer Capability for data calls is 64k
unrestricted (data).

[1] = ISDN Transfer Capability for data calls is determined
according to the ISDNTransferCapability parameter.
Defines the timeout (in seconds) for determining ISDN call transfer
(ECT, RLT, or TBCT) failure. If the device does not receive any
response to an ISDN transfer attempt within this user-defined time, the
device identifies this as an ISDN transfer failure and subsequently
performs a hairpin TDM connection or sends a SIP NOTIFY message
with a SIP 603 response (depending whether hairpin is enabled or
disabled, using the parameter DisableFallbackTransferToTDM).
The valid range is 1 to 10. The default is 4.
Determines whether the device allows interworking of network-side
received ECT/TBCT Facility messages (NI-2 TBCT - Two B-channel
Transfer and ETSI ECT - Explicit Call Transfer) to SIP REFER.

[0] Disable = Rejects ISDN transfer requests.

[1] Enable = (Default) The device sends a SIP REFER message to
the remote call party if ECT/TBCT Facility messages are received
from the ISDN side (e.g., from a PBX).
Enables "hairpin" TDM transfer upon ISDN (ECT, RLT, or TBCT) call
transfer failure. When this feature is enabled and an ISDN call transfer
failure occurs, the device sends a SIP NOTIFY message with a SIP
603 Decline response.

[0] = (Default) The device performs a hairpin TDM transfer upon
ISDN call transfer.

[1] = Hairpin TDM transfer is disabled.
1177
69. Configuration Parameters Reference
Description
Mediant 500L Gateway & E-SBC