H3C MSR Series Command Reference Manual page 76

Usage guidelines
The output shows ISDN protocol information at each layer on one or all interfaces. ISDN protocols
include Q.921, Q.931, and CC. You can use this command to troubleshoot problems.
Examples
# Display calling information on BRI 2/0.
<Sysname> display isdn call-info interface bri 2/0
Bri2/0(User-side): ACTIVE
Link Layer 1: TEI = 65, State = MULTIPLE_FRAME_ESTABLISHED
Link Layer 2: TEI = NONE, State = TEI_UNASSIGNED
Link Layer 3: TEI = NONE, State = TEI_UNASSIGNED
Link Layer 4: TEI = NONE, State = TEI_UNASSIGNED
Link Layer 5: TEI = NONE, State = TEI_UNASSIGNED
Link Layer 6: TEI = NONE, State = TEI_UNASSIGNED
Link Layer 7: TEI = NONE, State = TEI_UNASSIGNED
Link Layer 8: TEI = NONE, State = TEI_UNASSIGNED
Network Layer: 1 connections
Connection 1:
CallID: 0x0001, State: ACTIVE, CES: 1, Channel: 0x00000001
TEI: 65
Calling_Num[:Sub]: 2014:1325
Called_Num[:Sub]: 50401:24136
# Display calling information on PRI Serial 5/1:15.
<Sysname> display isdn call-info interface serial 5/1:15
Serial5/1:15(User-side):
Link Layer 1: TEI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Network Layer: 1 connections
Connection 1:
CallID: 0x0000ffff, State: ACTIVE, CES: 1, Channel: 0x00200000
TEI: 0
Calling_Num[:Sub]: 8306001
Called_Num[:Sub]: 8305001
Table 12 Command output
Field
Bri2/0(User-side): ACTIVE
Link Layer
Description
Whether a physical layer ISDN interface is active or not:
•
ACTIVE.
•
DEACTIVE.
A physical layer BRI is active when there is a call on the BRI.
A PRI can be used if the physical layer link is up whether or not the PRI is
active.
User-side indicates the ISDN interface is operating at the user side of ISDN.
Data link connections of the ISDN interface. ISDN establishes a connection
for each terminal and uses a TEI to identify the connection.
Only one connection can be established on a PRI, and up to 8 connections
can be established on a BRI.
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