Open door relay (dtmf) before accepting a call

Hi,

i have setup an intercom, on my indoor panel, when someone presses the doorbutton, i can press the “KEY” button… that should open the door

but the key button only works AFTER i accept the call, so in an active call only

is it possible to use this dtmf key, without accepting first, so while still ringing?

i can see event is happening in the log, allthough nothing happens

[2021-01-26 19:23:10] VERBOSE[2244] chan_sip.c: --- (9 headers 0 lines) ---
[2021-01-26 19:23:10] VERBOSE[2244] chan_sip.c: Really destroying SIP dialog '41cee64e64be3d581bed2b6b7cad3842[email protected]:5160' Method: OPTIONS
[2021-01-26 19:23:15] VERBOSE[2244] chan_sip.c: 
<--- SIP read from UDP:192.168.0.71:5060 --->
INFO sip:[email protected]:5160 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.71:5060;rport;branch=z9hG4bK2118979264
From: <sip:[email protected]:5060;line=81f4d6895eeb07e>;tag=1802605107
To: "Deurbel" <sip:[email protected]:5160>;tag=as768069a7
Call-ID: [email protected]:5160
CSeq: 3 INFO
Contact: <sip:[email protected]:5060>
Content-Type: application/dtmf-relay
Max-Forwards: 70
User-Agent: eXosip/3.6.0
Content-Length: 22

Signal=#
Duration=160
<------------->
[2021-01-26 19:23:15] VERBOSE[2244] chan_sip.c: --- (11 headers 2 lines) ---
[2021-01-26 19:23:15] VERBOSE[2244][C-0000000e] chan_sip.c: Receiving INFO!
[2021-01-26 19:23:15] VERBOSE[2244][C-0000000e] chan_sip.c: * DTMF-relay event received: #
[2021-01-26 19:23:15] VERBOSE[2244][C-0000000e] chan_sip.c: 
<--- Transmitting (NAT) to 192.168.0.71:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.0.71:5060;branch=z9hG4bK2118979264;received=192.168.0.71;rport=5060
From: <sip:[email protected]:5060;line=81f4d6895eeb07e>;tag=1802605107
To: "Deurbel" <sip:[email protected]:5160>;tag=as768069a7
Call-ID: [email protected]:5160
CSeq: 3 INFO
Server: FPBX-15.0.16.81(17.7.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Length: 0

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