Blocking INFO message ingress

Hi guys 

 

I have a very basic local policy to pickup calls from an outside realm and send it to an internal platform through in internal realm. As this is a video call the outisde party sends INFO message to update the video once the call is connected but for some reasons our 3820 is blocking the 404 on receiving it and sends back 404 immediately. 

 

This is the INFO we receive :

 

INFO sip:test.user1@x.x.x.x:5060;opaque=user:epid:Kj-h94UOx1iuPraZX2OhRgAA;gruu;transport=tcp SIP/2.0
Via: SIP/2.0/TCP x.x.x.x:5060;branch=z9hG4bKsopstc10b8rgsvg9k551.1
Max-Forwards: 68
Allow: INFO,MESSAGE,SUBSCRIBE,NOTIFY,UPDATE,REFER
Allow: INVITE
Allow: ACK
Allow: OPTIONS
Allow: CANCEL
Allow: BYE
User-Agent: Polycom/Polycom RMX 2000/V7.7.0
Allow-Events: refer,conference
From: <sip:100005@x.x.x.x>;tag=rmx2k_1606722368-2374-RMX-0000000982-0091750400
To: "Test User1 (LVD7DD003 - Glowpoint)"<sip:test.user1@x.x.x.x>;epid=9614b6cb3d;tag=SDrnj3a01-46c1533aa3
Call-ID: SDrnj3a01-9376ab2fe5de3188f8d37d851ca289e2-8g3en90
CSeq: 126 INFO
Contact: <sip:100005@x.x.x.x:5060;transport=tcp>;proxy=replace
Content-Type: application/media_control+xml
Content-Length: 167

<?xml version="1.0" encoding="utf-8" ?><media_control><vc_primitive><to_encoder><picture_fast_update></picture_fast_update></to_encoder></vc_primitive></media_control>