Vacant Number Routing

With Vacant Number Routing (VNR) enabled, if an unassigned number is dialed, the call is not treated as invalid, but instead routed to an alternate location. If the number remains unresolved, vacant number treatment is given at the terminating location. VNR is a way of sending vacant number calls to the NRS (via IP trunks) for end-point resolution, or to a tandem PBX without Building a Co-ordinated Dialing Plan (CDP).

Note: the NET_DATA block (Networking) overrides the INT_DATA block (Intercept Treatments). For example, when VNR in the NET data block is set to YES (and configured with an RLI), the call no longer follows the CVTN setting in the INT data block. If VNR is NO, calls follow the CTVN entries.

LD 15: NET_DATA - VNR is prompted only if FNP package (160) is equipped.

Prompt	Response	Description
VNR	(NO) YES	Enable Vacant Number Routing
RLI	0-1999	Route List Index (RLI), defined in LD 86, to be used by VNR
CDPL	1-(10)	Coordinated Dialing Plan (CDP) length, flexible length of VNR CDP
UDPL	1-(19)	Uniform Dialing Plan digits (UDP) length, flexible length of VNR UDP

Example:

▶ NET_DATA, print in LD 21, change in LD 15:

REQ: prt
TYPE: net

TYPE NET_DATA
CUST 0

TYPE NET_DATA
CUST 00
:
VNR YES                     enable vacant number routing
  RLI 10                    send to Route List Index 10
  CDPL 4                    CDP flexible length 4 digits
  UDPL 10                   max. number of UDP digits expected
NIT 8                       NARS interdigit timer (seconds) - not related to VNR
:

▶ Route list, print/change LD 86:

REQ  prt
CUST 0
FEAT rlb
RLI  10

RLI  10
ELC  NO
ENTR 0
LTER NO
ROUT 10                    first choice route
TOD  0 ON  1 ON  2 ON  3 ON
     4 ON  5 ON  6 ON  7 ON
VNS  NO
CNV  NO
EXP  NO
FRL  1
DMI  10                    use DMI 10
CTBL 0
FCI  0
FSNI 0
BNE  NO
DORG NO
SBOC RRA
COPT 2
IDBB DBA
IOHQ NO
OHQ  NO
CBQ  NO

ENTR 1
LTER NO
ROUT 11                    second choice/backup route
TOD  0 ON  1 ON  2 ON  3 ON
     4 ON  5 ON  6 ON  7 ON
VNS  NO
CNV  NO
EXP  NO
FRL  1
DMI  10
CTBL 0
FCI  0
FSNI 0
BNE  NO
DORG NO
SBOC NRR
IDBB DBD
IOHQ NO
OHQ  NO
CBQ  NO

ISET 2                    there are two possible routes
NALT 5
MFRL 0
OVLL 0

▶ Digit Manipulation, print/change LD 86:

REQ  prt
CUST 0
FEAT dgt

DMI  10

DMI  10
DEL  0                    don't delete any digits
ISPN NO
CTYP CDP                  set call type to CDP

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