CUCM 10.x introduced some changes in LDAP/AXL integration that weren't built into CWMS design and required significant changes (that were implemented in 2.0 MR3 version).
Troubleshooting this error message would require log collection and deeper analysis, but due to unsupported environment, Cisco TAC probably wouldn't be able assist you before the supported version of CUCM is implemented, or CWMS was upgraded to 2.0 MR3 and above.
If you verified all the configuration parameters and settings per CWMS 1.5 documentation and this doesn't work, then it is most likely issue with how CUCM 10.5 handles request via AXL.
Unfortunately, that is all that can be done at this time.
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
Over the last few months, I have had the privilege of working on SI...
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