Skip2PBX is 100% compatible with Trixbox and Trixbox clones.

1. Create a new SIP trunk in Trixbox

Configure trunk with following settings:

Outgoing settings:

Trunk name:
skip2pbx
Peer details:
canreinvite=no
context=from-internal
fromuser=asterisk
host=192.168.1.1 # Replace this with your Skip2PBX IP
insecure=very
qualify=no
secret=asterisk
type=friend
username=asterisk

Registration:

Register string:
asterisk: This e-mail address is being protected from spambots. You need JavaScript enabled to view it .1.1 #Replace this with your Skip2PBX IP

2. Configure your Skip2PBX to accept trunking from your asterisk

Open your Skip2PBX web interface and go in Channels > SIP > SIP trunks and  create a new trunk with following specs:

Authentication mode	Based on IP (trusted)
Link mode	PBX
Username	asterisk
Remote Side IP	your asterisk IP
Remote side port	5060
DTMF Mode	RFC2833

3. Configure at least an outbound routein your Trixbox PBX

Use a dial pattern like the following to route calls through Skip2PBX:
9|.
With this setting your Skip2PBX prefix will be "9".

4. Configure your Skip2PBX routes

Open your Skip2PBX web interface and go in Call routes > Inbound calls or Call routes > Outbound calls and define routes depending on your preferences.

Default outbound route works for 99% of configurations.

PLEASE NOTE: For incoming calls you may need to specify an extension number to route call to.