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# How to start a call from the PA1 using the keyboard inout PINs

## In order to realize this behavior you need to:

1. Set the PA1 with a registered extension

2. Configure a speed dial with callee's phone number
"Setup -> Speed Dial"

You can avoid the use of the speed dial if you match directly the input digit with the Dial Plan (see next point)

3. Configure a dial Plan that matches the speed dial digit and place call

"Setup -> Identity -> SIP -> Dial-Plan String"

## How to use a Regular Expression:Â sip_account.x.dial_plan

1. Short circuit the Pa1 keyboard pin to simulate the button according to the following list:

 Â Key Â PIN Â PIN 0 2 3 1 6 7Â 2 5Â 7Â 3 4Â 7Â 4 3Â 7Â 5 2Â 7Â 6 1 7Â 7 6 5Â 8 5 4Â 9 7 0 P1 3 4 P2 2 4 P3 1 3 P4 1 4

If you want to avoid the use of Dial-Plan you can set aÂ function keyÂ as speed dial type and fill with the number to dial

In order to simulate the function key button you need to short circuit the two pins according to theÂ Keyboard Matrix

This will start the calls immediately.

### ExampleÂ 1

If you short-circuit the contacts 2 and 3 of the KBD connector you are simulating the pressure of the Key Number 0,
so adding a regex dialplan like the following you will be able to automatically call speed dial associated from key 0 to 9:Â

• !([0-9]+)!sip:\1@\d!d

### ExampleÂ 2

If you short-circuit the contacts 2 and 3 of the KBD connector you are simulating the pressure of the Key Number 0,
so adding a regex dialplan like the following you will be able to automatically call the extension 108:

You need to add the number to call in the string.Â

### ExampleÂ 3

If you short-circuit the contacts 2 and 4 of the KBD connector you are simulating the pressure of the P2 key,Â

this will dial the number that you put into the label (in this case extension 108)

There's no need of a dial-plan.Â

Further Information

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