IAX2 Trunking Two Trixbox Servers

Here is the method I am currently using to connect two trixbox servers. This is all done using freePBX.
Dialing 5XXX on either server reaches extension XXX on the other. This can be modified as needed.

Use find & replace in a text editor to change the actual values:

Server1 : Name of Server1 (arbitrary)
Server2 : Name of Server2 (arbitrary)
Server1IPAddress : ip address of server 1
Server2IPAddress : ip address of server 2
Server1User : user acct for server 1 (arbitrary)
Server2User : user acct for server 2 (arbitrary)
Server1Secret : password for server 1 (arbitrary)
Server2Secret : password for server 1 (arbitrary)

Then you can cut & paste the sections into the proper forms.

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Server1 Configuration

Create new IAX2 Trunk: Trunk Name: Server2

Peer Details:
context=from-internal
host=Server2IPAddress
qualify=yes
secret=Server2Secret
type=peer
username=Server2User

User Context: Server1User

User Details:
context=from-internal
host=Server2IPAddress
secret=Server1Secret
type=user

Create outbound route:
Dial Patterns: 5|XXX
trunk Sequence: IAX2/Server2

---

Server2 Configuration

Create a new IAX2 Trunk: Trunk Name: Server1

Peer Details:
context=from-internal
host=Server1IPAddress
qualify=yes
secret=Server1Secret
type=peer
username=Server1User

User Context: Server2User

User Details:
context=from-internal
host=Server1IPAddress
secret=Server2Secret
type=user

Create outbound route:
Dial Patterns: 5|XXX
trunk Sequence: IAX2/Server1

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UPDATE: I have added a post for trunking two trixbox pro servers.