Hi All I am having issues with Grandstream GXP2130. When we make any calls from this phone, either internal or external, Grandstream GXP2130 not hangup properly and hangup after time out. I see the SIP logs, phone is sending the BYE. ------------------------------------------------------------------------ recv 585 bytes from udp/[A.B.C.D]:1028 at 23:14:08.086342: ------------------------------------------------------------------------ BYE sip:235@I.J.K.L:5060;transport=udp SIP/2.0 Via: SIP/2.0/UDP 192.168.240.131:5060;branch=z9hG4bK855972464;rport From: "Nelson Eddy" <sip:nelson.eddy@mydomain.ca>;tag=147586373 To: <sip:235@mydomain.ca>;tag=t6SeUBtDa9BQK Call-ID: 1863291899-5060-7@BJC.BGI.CEA.BDB CSeq: 52 BYE Contact: <sip:nelson.eddy@192.168.240.131:5060> X-Grandstream-PBX: true Max-Forwards: 70 Supported: replaces, path, timer User-Agent: Grandstream GXP2130 1.0.4.10 Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE Content-Length: 0 ------------------------------------------------------------------------ Does anyone have the similar issue. How to solve this issue Thank you LLoyd