IBM OSS is ranked 6th in Operations Support Systems while Nokia Siemens NetAct is ranked 2nd in Operations Support Systems. IBM OSS is rated 0.0, while Nokia Siemens NetAct is rated 0.0. On the other hand, IBM OSS is most compared with Oracle OSS, NetCracker OSS and Ericsson OSS, whereas Nokia Siemens NetAct is most compared with Ericsson OSS, NetCracker OSS, Oracle OSS, Huawei OSS and Amdocs CES.
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