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8.10 NPA Dialing
The North American Numbering Plan (NANP) is an integrated telephone numbering plan of 24 countries
and territories: the United States and its territories, Canada, Bermuda, and 16 of the Caribbean
countries.
For E.g.: If this is your phone number, 001-2127773456, then you can configure as NPA in the Dial out
Rules as a 001212+XXXXXXX where 001 is a Country code and the 212 as a Area code and X is a
number of digits to dial out. In this above case you have to dial only 7773456 from any of the NanoPBX
Extensions. Once you dial, it will compare the number of digits which is configured in the Dial out Rules
configured for NPA.
9. Appendix B: Phones configuration required for NanoPBX Interoperability
9.1 X-Lite Configurations
Right Click on X-Lite -> SIP Account Settings -> Select Property of SIP Account
=> Presence -> Refresh Interval -> 60 sec
=> Advanced -> Reregister every -> 60 sec
If you have difficulty establishing a connection with the NanoPBX, give STUN Server
=> Topology -> STUN Server -> Use Specified Server -> “STUN Server IP Address”
9.2 SNOM IP Phone Configuration
Identity X -> SIP -> Proposed Expiry: -> 60
Identity X -> SIP -> Subscription Expiry (s): -> 60
Advanced Settings -> SIP/RTP -> SIP Session Timer(s): -> 60
Advanced Settings -> QoS/Security -> Filter Packets from Registrar: -> Off
9.3 Linksys PAP2 ATA
Admin Login -> Advanced View -> Line1
NAT Mapping Enable: Yes
NAT Keep Alive Enable: Yes
Register Expires: 60 sec
10. Appendix C: Glossary of Terms
ATA
Analog Telephone Adapter: Used to connect a standard telephone to a high-speed modem to facilitate
VoIP and/or fax calls over the Internet.
DHCP