FreePBX / Asterisk

Notes here are for correctly installing and configuring FreePBX


Settings > Asterisk SIP Settings

Nat Settings

You need to configure depending upon your setup. For most customers that are using FreePBX behind a NAT (router) you should set Nat=yes and IP Configuration to Static IP

Enter your External IP and add your Local Networks For example

IP Configuration?
External IP?
Local Networks?  / 
Audio Codecs

Codec should be set to alaw only.

Notification & MWI should be both set to No

Registration Settings (defaultexpiry) needs to be set to 3600

Allow Anonymous Inbound SIP Calls? Yes

SRV Lookup = Yes

Submit Changes

Under Connectivity > Trunks > Add SIP Trunk

Outgoing Settings

Trunk Name: NehosOut

PEER Details

Incoming Settings

USER Context: NehosIn


Register String :

This sends a registration request to Nehos so we know what your public IP address is.

The format for the registration string is

For example

FreePBX current version v2.11
Asterisk least v10.12.2

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