TOPEX Eones supports Lucent-5ESS in its interoperability test - TOPEX Eones equipment supports Lucent-5ESS in its interoperability test with Spanish operator ONO Bucharest, July 26th, 2007 TOPEX, a leading telecom equipment manufacturer and NGN solution provider confirms that its customer Alea, an operator based in Spain is using TOPEX Eones equipment for SS7 interconnection with Spanish operator ONO. TOPEX signalling gateway, Eones has provided full interoperability with Lucent-5SS used by ONO system. The TOPEX Eones supports and inter-works directly between SS7, SIP and H.323. CAS, R2 providing seamless interconnect of disparate networks running different types and versions of VoIP and PSTN protocols.