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The BLF service of eSpace 7950 did not working

Publication Date:  2014-05-27 Views:  67 Downloads:  0
Issue Description
One oversea customer use the IPT solution with eSpace U1980 V100R001SPC900 and eSpace 7950 V100R001C03SPC300, When the IP phone enable BLF function, the indicator light was off. 
Alarm Information
no 
Handling Process
1. Capture network packet on IP phone side, and found IP phone already sent out subscriber message, but received a “500 internal error” message from U1980. 

2. Check U1980 logs,  and found U1980 think “the user does not have the newservice” then send 500 message to IP phone. 

3. Check the user rights on U1980, this user already have BLF services. 

4. Check other service of this user and found this user have One Number Link You (ONLY) service, but the main number didn’t open BLF service, when there is a ONLY service opened, the system always check the main number’s service rights.
5. Open the main number BLF right, the issue was resolved.
Root Cause
1. The user didn’t have BLF right on U1980
2. The user didn’t have BLF right on IP phone, the subscriber was not opened.
3. The network problem cause the subscriber message sent from IP phone was not received by U1980. Or U1980 received the subscriber message and make the response, but IP phone didn’t received.
Suggestions
When there is a ONLY service opened, the system always check the main number’s service rights. 

END