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CHAPTER 4
Configuration
Configuring Drop and Insert Multiplexing
Installation Guide: 601, 602, and 604 Routers
Configuring Drop and Insert Multiplexing
Use the Drop and Insert feature to terminate IP traffic on the Alcatel OmniAccess 602 and
OmniAccess 604 routers
1
while passing through the DS0s that carry voice traffic.
NOTE:
The pass through Channel Associated Signaling (CAS) on the E1 interfaces is not supported in
this release. CAS is fully supported on the T1 interfaces. Common Channel Signaling (CCS) is supported
when configured for ISDN.
NOTE:
ISDN uses the last DS0 available to the link for the signaling channel. When carrying ISDN PRI
traffic DS0 number 24 must be passed through on the T1, and DS0 number 31 must be passed through for
the E1.
Rules
Port 1 should always be connected to the network (not the local PBX).
Port 2 should always be connected to the local PBX (not the network).
Configure the Link settings first.
Configure the clock on Port 1 second, and always set it to LINE.
Configure the clock on Port 2 third, and always set it to BTCLK.
Configure the mode last.
Recommendations
Configure IP (terminating) bundle starting at the lowest numbered DS0, and the Voice (Pass
Through) bundle starting at the highest numbered DS0.
Examples
Below are two typical configuration examples for T1 and E1 interfaces.
E1 Configuration
1.Note that this feature is not supported on the Alcatel OmniAccess 601.
host/configure> interface bundle data
host/configure/interface/bundle data> link e1 1:1-15
host/configure/interface/bundle data> encapsulation ...
host/configure/interface/bundle data> exit
host/configure> interface drop_insert voice
host/configure/interface/drop_insert voice> link e1 1 2
timeslots 17-31
host/configure/interface/drop_insert voice> clock_source 1 line
host/configure/interface/drop_insert voice> clock_source 2
btclk
host/configure/interface/drop_insert voice> mode 2 1