Parameter: LNP Options: Incoming Calls LNP Mode

Terminate LNP

• Routing is done using the real called party number (not the LRN). LNP fields are ignored for the outgoing leg. (Default)

Forward LNP from incoming to outgoing call

• Routing is done using the LRN when available otherwise the called party number is used. LNP fields are kept for possible relay on outgoing leg.

Ignore LNP information

• Routing is done using the called party number. LNP fields are ignored for the outgoing leg.

The following table contains the pseudo-code of the mapping according to the configuration AND the content of the incoming call signaling:
CPN = called party number or the TO sip header
called = called number variable accessible in routing script
GAP = generic address number SS7 information element type 0xc0
ported_number = extra number type accessible in the routing script
RN = rn field in SIP request URI
bitM = SS7 Forward call indicator information element: ported number translation indicator (bit M)
X = drop number

Incoming NAP conf.	Incoming SS7	Incoming SIP
Ignore	CPN => called GAP => X	CPN => called RN => X
Terminate	GAP => called CPN => X ported_number not available	CPN => called RN => X ported_number not available
Forward	if bitM=1 then "" => ported_number if GAP then CPN => called GAP => PNB else CPN => called	if npdi=yes then "" => ported_number if RN then CPN => ported_number RN=> called else CPN => called