A Deep Dive into Logging Out a SIP Client | Tao, Zen, and Tomorrow
SIP – Telecom R & D
REFER throwing `481 Call Leg/Transaction Does Not Exist` · Issue #6 · sippy/go-b2bua · GitHub
SIP 481 error code - Cisco Community
Replaces Header Support
attended transfer failed: 481 Call Leg/Transaction Does Not Exist/INVITE | 3CX Forums
Lync 2013 and Office 365 voicemail calls failing with 481 call leg does not exist – irrationale
Solved: Transfer or transferred call drops with 481 - Adtran Support Community
Replaces Header Support
Click to Call with PHP-SIP - Level 7 Systems
PPT - SIP:Session Initiation Protocol PowerPoint Presentation, free download - ID:3890428
Ribbon - EdgeView Cloud to Edge - CloudBlue | Catalog
SIP PRACK Interworking
Addressing Dropped Calls in Avaya Communication Manager
47) Resource unavailable, unspecified disconnection cause for both side call via SIP - Cisco Community
Alexandr Engineer VoIP: sip 481 call/transaction does not exist
VoIP/SIP 481 Call Leg/Transaction Does Not Exist (AUD-560) · Issue #209 · espressif/esp-adf · GitHub
Lync 2013 and Office 365 voicemail calls failing with 481 call leg does not exist – irrationale
47) Resource unavailable, unspecified disconnection cause for both side call via SIP - Cisco Community
Clarifications on refer attended - Asterisk SIP - Asterisk Community
SIP ( Session Initiation Protocol ) – Telecom R & D
wireshark - SIP Error 481 Call/Transcation Does Not Exist when transferring - Stack Overflow
