Authentication failed for AuthFail Recv Req INVITE | OneAcces Gateway

[tech_hocl]

Hello, i'm having issues while setting up a OneAccess gateway. SIP trunk is registered, and outgoing calls are working fine. The only issue is with the incoming calls.

Kindly find below logs;

24/06/2022 12:02:29:916 | 10 | [CM102001]: Authentication failed for AuthFail Recv Req INVITE from 10.10.10.225:5060 tid=-1E42-12B Call-ID=OA27CC2AB8525863335DCC6AB2:
INVITE sip:[email protected];user=phone SIP/2.0
Via: SIP/2.0/UDP 10.10.10.225;branch=z9hG4bK-1E42-12B
Max-Forwards: 70
Contact: <sip:[email protected];user=phone>
To: <sip:[email protected];user=phone>
From: "52586333" <sip:[email protected];user=phone>;tag=7A0
Call-ID: OA27CC2AB8525863335DCC6AB2
CSeq: 17109 INVITE
Accept: application/sdp
Allow: PRACK, ACK, CANCEL, BYE, SUBSCRIBE, NOTIFY, INVITE, REFER, OPTIONS, PUBLISH, INFO, UPDATE, REGISTER
Content-Type: application/sdp
Proxy-Authorization: Digest username="52586333",realm="3CXPhoneSystem",nonce="414d535c18c638d522:a3cb42a7de1731aa1b168167fdc71272",uri="sip:[email protected]",response="859a8385a6c7d8b42d3858d40bc4cdeb",algorithm=MD5
Supported: replaces
Allow-Events: hold, talk
Privacy: none
P-Asserted-Identity: <sip:[email protected];user=phone>
Content-Length: 216

v=0
o=User1 3155835888 3155835888 IN IP4 10.10.10.225
s=Session SDP
c=IN IP4 10.10.10.225
t=0 0
m=audio 16412 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
; Reason: Credentials don't match, check that authorization-ID and password match the ones in extension settings

Level = 2
Severity = Warning
Tread = 10
Source = E:\jenkins\workspace\Releases\18.0.SP2\Sources\Projects\PbxServer\src\Authorization.cpp, line:203

I've been trying since one week , but in vain and a help would much be appreciated.

Thanks.

Rgds,
Annash