[SR-Users] Remving ISUB tag in FROM field

Hi, Our openSER proxy is receiving SIP messages from PBX devices. The PBX includes its extension in the FROM field of the SIP message. Is there any function in the openSER to strip off the PBX extension (anything after username and before @domain)? Is uac_replace_from( ) function is the right one? 3d:13h:41m:33s INVITE sip:888-555-1212@10.0.0.1;user=phone SIP/2.0 Via: SIP/2.0/UDP 10.5.0.1;branch=z9hG4bKac1169001476 Max-Forwards: 70 From: <sip:8885551212;isub=37313132@10.5.0.1.>;tag=1c1168990861 To: <sip:8665551212@10.0.0.1;user=phone> Call-ID: 1168989994392010134133(a)10.0.0.1 CSeq: 1 INVITE Contact: <sip:4075857112@10.5.0.1> Supported: em,timer,replaces,path,resource-priority,sdp-anat Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SUBSCRIBE,UPDATE User-Agent: CS-Pelloni/v.5.60A.021.004 Content-Type: application/sdp Content-Length: 261Thanks, AR