Changes between Initial Version and Version 4 of Ticket #866


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Timestamp:
Aug 12, 2009 11:05:46 AM (14 years ago)
Author:
bennylp
Comment:

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  • Ticket #866

    • Property Cc johan added
    • Property Summary changed from Option to continue application startup without STUN to Allow application to specify more than one STUN servers for more robustness, and continue application startup if STUN resolution fails
    • Property Priority changed from normal to critical
    • Property Version changed from Sipit24 to trunk
    • Property Milestone changed from Sipit24 to release-1.4
    • Property Keywords sipit24 added

  • Ticket #866 – Description

    initial v4  
    1 Some firewall with SIP ALG (notably Microsoft Forefront Threat Management Gateway) may decidedly block STUN traffic, since it can manipulate private address in SIP packet into public address. In this case, it may be desirable to allow PJSUA-LIB based application to continue application startup even when no STUN response is received. 
     1Currently if STUN server is down, PJSUA-LIB initialization will fail. Having more than one STUN servers will increase the robustness of the application in this case. 
     2 
     3Also it may be desirable to allow application startup to continue when STUN servers fail to be contacted. Some firewall with SIP ALG (notably Microsoft Forefront Threat Management Gateway) may decidedly block STUN traffic, since it can manipulate private address in SIP packet into public address.