User's Manual  1166  Document #: LTRT-10532 
 
  Mediant 500L Gateway & E-SBC 
Parameter  Description 
the device answers with a Facility IE message with the 
Reject component on receipt of Facility IE with 
unknown/invalid Invoke component. This bit is implemented 
in QSIG and ETSI variants.
 
[PSTNExtendedParams]  Determines the bit map for special PSTN behavior parameters:
  [0] = (Default) Applicable for NI-2 ISDN and QSIG 
"Networking Extensions". This bit (i.e., bit #0) is responsible 
for the Invoke ID size: 
  If this bit is not set (default), then the Invoke ID size is 
always one byte, with a value of 01 to 7f. 
  If this bit is set, then the Invoke ID size is one or two 
bytes according to the Invoke ID value. 
  [2] = Applicable to the ROSE format (according to the old 
QSIG specifications). This bit (i.e., bit #1) is responsible for 
the QSIG octet 3. According to the ECMA-165 new version, 
octet 3 in all QSIG supplementary services Facility 
messages should be 0x9F = Networking Extensions. 
However, according to the old version, the value should be 
0x91 = ROSE: 
  If this bit is not set (default): 0x9F = Networking 
Extensions. 
  If this bit is set: 0x91 = ROSE. 
  [3] = Use options [0] and [2] above. 
Note: For the parameter to take effect, a device reset is 
required. 
BRI Parameters 
BRI Layer 2 Mode 
configure voip > interface bri > isdn-
layer2-mode 
[BriLayer2Mode] 
Defines Point-to-Point (P2P) or Point-to-Multipoint (P2MP) 
mode for BRI ports. 
  [0] Point to Point (default) 
  [1] Point to Multipoint = Must be configured for Network 
side. 
configure voip > interface 
bri > tei-config-p2p 
[BriTEIConfigP2P_x] 
Defines the BRI terminal endpoint identifier (TEI) when in 
point-to-point (P2P) mode. 
The valid value is 0 to 63, 127. The default is 0. 
  Network Side: 
  0-63: Static TEI is accepted. 
  127: Any possible TEI is accepted. Dynamic TEI 
allocation is supported. 
  User Side: 
  0-63: Static TEI is used. 
  127: Dynamic TEI allocation is supported (TEI request 
procedure initiated). 
Note: The value 127 replaces the previous configuration 
requirement to set the ISDNIBehavior parameter to NS 
EXPLICIT INTERFACE ID (1). 
configure voip > interface bri > tei-
config-p2mp 
[BriTEIConfigP2MP_x] 
Defines the BRI TEI when in point-to-multipoint (P2MP) mode. 
The valid value is 0 to 63, 127. The default is 127. 
  Network Side: Not applicable - In network side in P2MP 
configuration, any TEI must be accepted.