CHAPTER23 Digital PSTN
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
■ [256] STORE CHAN ID IN SETUP = The device forces
the sending of a Channel-Id IE in an outgoing Setup
message even if it's not required by the standard (i.e.,
optional) and no Channel-Id has been specified in the
establishment request. This is useful for improving
required compatibility with switches.On BRI lines, the
Channel-Id IE indicates ‘any channel’.On PRI lines it
indicates an unused channel ID, preferred only.
■ [512] USE A LAW = The device sends G.711 A-Law in
outgoing voice calls. When disabled, the device sends the
default G.711-Law in outgoing voice calls.
Note: The option is applicable only to the E10 variant (T1
ISDN).
■ [1024] = Numbering plan/type for T1 IP-to-Tel calling
numbers are defined according to the manipulation tables
or according to the RPID header (default). Otherwise, the
plan/type for T1 calls are set according to the length of the
calling number.
Note: The option is applicable only to T1 ISDN.
■ [2048] = The device accepts any IA5 character in the
called_nb and calling_nb strings and sends any IA5
character in the called_nb, and is not restricted to
extended digits only (i.e., 0-9,*,#).
■ [16384] DLCI REVERSED OPTION = Behavior bit used
in the IUA interface groups to indicate that the reversed
format of the DLCI field must be used.
Note:
■ If you are modifying the parameter for an existing
(configured) trunk through the Web interface, you must
first stop the trunk.
■ When using the ini file to configure the device to support
several ISDNOutCallsBehavior features, add the
individual feature values. For example, to support both [2]
and [16] features, set ISDNOutCallsBehavior = 18 (i.e., 2
+ 16).
'Incoming Calls Behavior'
configure voip >
interface e1-t1|bri >
isdn-bits-incoming-
calls-behavior
[ISDNInCallsBehavior]
Defines (by bit-field) several options that influence how the
ISDN Stack INCOMING calls behave.
■ [32] DATA CONN RS = The device automatically sends
a Q.931 Connect (answer) message on incoming Tel calls
(Q.931 Setup).
■ [64] VOICE CONN RS = The device sends a Connect
(answer) message on incoming Tel calls.
■ [2048] CHAN ID IN FIRST RS = The device sends
Channel ID in the first response to an incoming Q.931 Call
Setup message. If not set, the Channel ID is sent only if
the device requires changing the proposed Channel ID.
■ [4096] USER SETUP ACK = (Default) The Setup Ack
message is sent by the SIP Gateway application layer and
not automatically by the PSTN stack.
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