MikoPBX and FreePBX (PJSIP)

Creating a Provider on MikoPBX

1. In MikoPBX, go to "Routing" → "Telephony Providers":

1. Add a new SIP provider by clicking "Connect SIP":

1. Fill in the following parameters:

• Provider Name – any name

• Account Type – Incoming Registration

Copy the "Username" and "Password"; you will need them later.

Creating a Trunk on FreePBX

1. In the FreePBX interface, go to "Connectivity" → "Trunks":

1. Add a new trunk of type "chan_pjsip".

1. Insert the MikoPBX provider’s login into the "Trunk Name" field:

1. Go to "pjsip Settings" → "Advanced":

• From User – your MikoPBX provider login

• Trust RPID/PAI – "yes"

• Send RPID/PAI – "Send Remote-Party-ID header"

1. On the "Dialed Number Manipulation Rules" tab, define your dial patterns

Save the changes.

Registration Variants

Next, choose one of the two registration methods:

FreePBX Registers on MikoPBX

MikoPBX Registers on FreePBX

Set a password (complex, arbitrary). It must be the same on both MikoPBX and FreePBX.

In the MikoPBX “advanced settings” of your provider, under "Additional Parameters," include:

[endpoint]
trust_id_inbound=yes
send_rpid=yes

Save and apply the changes.

Routing Configuration

1. Define an outbound route (“Outbound Routing” article) in MikoPBX:

1. Define an inbound route (“Incoming Routing” article) in MikoPBX:

If necessary, define a separate route for each DID to direct calls to the correct destination (e.g., if a FreePBX user dials 202, route it to extension 202 on MikoPBX):

1. Go to "Connectivity" → "Inbound Routes" in FreePBX and define an inbound route:

1. Go to "Connectivity" → "Outbound Routes" in FreePBX and define an outbound route:

Subscriber Statuses

Sometimes users on one PBX need to see the statuses of users on the other PBX, for example when using BLF. To configure statuses:

MikoPBX

1. In the "System File Customization" section, add the following text to the end of "extensions.conf" on the first PBX:

[internal-hints]
exten => 301,hint,PJSIP/301
exten => 303,hint,PJSIP/303
exten => 302,hint,PJSIP/302

List all internal extensions configured on FreePBX.

1. For each PBX, in the "System file customization" section, add the following text to the end of "pjsip.conf":

[SIP-TRUNK-41C1B8B4-devicestate]
type=outbound-publish
server_uri=sip:[email protected]:5060
event=asterisk-devicestate

[SIP-TRUNK-41C1B8B4]
type=asterisk-publication
devicestate_publish=SIP-TRUNK-41C1B8B4-devicestate
device_state=yes

[SIP-TRUNK-41C1B8B4]
type=inbound-publication
event_asterisk-devicestate=SIP-TRUNK-41C1B8B4

FreePBX

1. Use the "Config Edit" module to edit files.

2. In "extensions_custom.conf," add all of MikoPBX’s internal extensions:

[mikopbx-hints]
exten => 201,hint,PJSIP/201
exten => 202,hint,PJSIP/202

1. In "pjsip_custom.conf," add:

[SIP-TRUNK-41C1B8B4-devicestate]
type=outbound-publish
server_uri=sip:[email protected]:5060
event=asterisk-devicestate
outbound_auth=SIP-TRUNK-41C1B8B4

[SIP-TRUNK-41C1B8B4]
type=asterisk-publication
devicestate_publish=SIP-TRUNK-41C1B8B4-devicestate
device_state=yes
device_state_filter=^PJSIP/

[SIP-TRUNK-41C1B8B4]
type=inbound-publication
event_asterisk-devicestate=SIP-TRUNK-41C1B8B4