MP112 & OXE, incoming call of MP112 is terminated.

[Skoh_utec]

Hi

I have deployed OXE (R100.0) and MP112 (6.60A.365) by SIP trunk.
Ext.1498/1499 (SIP device) behind MP112, and another ALE Ext.2351 for test.

Test call:
2351 →　1498(1499) is NG , can see Link fail in ALE display.

And I found below error in MP112 syslog
01-16-2023 14:39:19 Local0.Warning 172.25.128.96 [S=690] [SID:1818948705] ( lgr_stk_ses)(2093 ) !! [ERROR] SIPStackSession::HandleStackSetupEV failed because no remote IP
01-16-2023 14:39:19 Local0.Notice 172.25.128.96 [S=691] [SID:1818948705] ( sip_stack)(2094 ) New SIPMessage created - #13
( lgr_flow)(2095 ) | |(SIPTU#7)DISCONNECT_REQ State:Invited(6f10ef2a1544edcf3157e0f3fb76a15f@172.25.110.200)
01-16-2023 14:39:19 Local0.Warning 172.25.128.96 [S=692] [SID:1818948705] ( sip_stack)(2096 ) ?? [WARNING] SIPCallInvitedState::Disconnect Incorrect release reason, set reason to 487


but the outgoing call is OK.

Who can give me any suggestion of it.

Gao/UTEC