47) Resource unavailable, unspecified disconnection cause for both side call via SIP - Cisco Community
Lync 2013 and Office 365 voicemail calls failing with 481 call leg does not exist – irrationale
Clarifications on refer attended - Asterisk SIP - Asterisk Community
Cannot tranfer PSTN Skype calls: sip 481. Cal Leg/Transaction does not exist
PPT - SIP:Session Initiation Protocol PowerPoint Presentation, free download - ID:3890428
Alexandr Engineer VoIP: sip 481 call/transaction does not exist
SIP ( Session Initiation Protocol ) – Telecom R & D
Replaces Header Support
Solved: Transfer or transferred call drops with 481 - Adtran Support Community
SIP Protocol Message Reference Guide – Ian Seno
E.T. Can't Phone Home Security Issues with VoIP - ppt download
wireshark - SIP Error 481 Call/Transcation Does Not Exist when transferring - Stack Overflow
SIP PRACK Interworking
47) Resource unavailable, unspecified disconnection cause for both side call via SIP - Cisco Community
Lync 2013 and Office 365 voicemail calls failing with 481 call leg does not exist – irrationale
SIP 481 error code - Cisco Community
A Deep Dive into Logging Out a SIP Client | Tao, Zen, and Tomorrow
SIP calls drop after 15 minutes in Branch office. Re-Invite not propagated by Carrier - Cisco Community
Your chatroom functionality may be limited due to an outage" client error after adding new Central site to SfB topology
A Deep Dive into Logging Out a SIP Client | Tao, Zen, and Tomorrow
Addressing Dropped Calls in Avaya Communication Manager
VoIP/SIP 481 Call Leg/Transaction Does Not Exist (AUD-560) · Issue #209 · espressif/esp-adf · GitHub
REFER throwing `481 Call Leg/Transaction Does Not Exist` · Issue #6 · sippy/go-b2bua · GitHub
Replaces Header Support
sipxcom-users - Google Groups
SIP ALG | Junos OS | Juniper Networks
