8-22 Smart Switch 1800 4. 0 User Guide , Rev 0 1
This configuration requires Port and Subscriber ID records in node 1 for:
●Subscriber 00100 on RLP 0 , P ort 1
●Subscriber 123* on RLP 1, Port 3
In node 2, RLP, Port, and Subscriber records must be configured for:
●Subscriber 12301 on RLP0, port 0
●Subscriber 12302 on RLP0, port 1
●Subscriber 12303 on RLP0, port 2
●Subscriber 12304 on RLP0, port 3
If subscriber 00100 sends a Call Request with any of called addresses 12301 through
12304, node 1 searches for a matc h, finds 123* on Po rt 3, then r outes the pack et to nod e
2, RLP1, port 0, where node 2 reads the full called address in the packet and routes it
out the appropriate port.

Search O rder for Subscriber Addresses

A subscriber address that includes a wildcard potentially matches more addresses than
one with no wildcards. For example, the address * matches all oth e r addresses.
Without a checking mech anism an address with no wil dcards co uld be rea d as a match
for an address with a wildcard, and sent to the wrong place. To avoid this, a search
order ha s been es tablis h ed for perfo rm ing c a ll routi ng:
●Addresses with no wildcards will be searched first.
●Addresses with only ? wildcards will be checked next.
●Addresses with * will be checked last.
Within each wildcard group, addresses with the most non-wildcard digits will be
checked first. For example, 311012345678* will be checked before 3110*.
Hunt Gr oup E xample
Here is a n exampl e of ho w the hunt gr oup fu nction works , using t he algo rithm L east
LCN With Th rupu t . The routing path process will calculate a loading factor based on
the number of LCNs in use and the line speeds for each Call Request received. The
method is prop rietar y, but i s descr i bed gene rall y h ere.
Ports and letter symbols in the example are:
Line Speed
RLP 0, port 0 2400 bps
RLP 1, port 0 4800 bps
RLP 1, po rt 1 in fail ed state , but is define d as a ro ut ing p ath
RLP 1, port 2 9600 bps
M= The maximum bps of any operational line in this routing path group.
w= The bp s of an ind ivid ua l lin e .
U= A proprietary line utilization factor, taking into account the number of
active VCs on the line, and the line's speed.