No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


failed to configure sip trunk from eSpace U1980 to SBC

Publication Date:  2013-05-16 Views:  250 Downloads:  0

Issue Description

one customer site need to configure an sip trunk from eSpace U1980 to SBC, but failed with the prompt like below pic show :

Alarm Information


Handling Process

check the SBC configuration, it's not encryption, modified the sip trunk configuration on U1980 from TCP module to UDP module, it works fine.

Root Cause

this is because customer configured the sip trunk with TCP module, When it's TCP module , we have a license switch control called “Platform Open Interface license”, the TCP module is for encryption services, also should be the same with the SBC configuration.


need  to familiar with the difference between the TCP module and UDP module.