Telefónica Global Solutions manages globally the multinational, wholesale and roaming business within the Telefónica Group. The wholesale unit business provides international telecommunications services for fixed and mobile carriers, ISPs, content providers and business customers. With presence in the main European and American markets, Telefónica offers a wide-ranging solutions portfolio that includes international voice, IP, capacity, satellite, and mobility services for operators and service providers, as well as international telecommunications services for multinational businesses.
Telefónica operates a Tier 1 backbone offering direct connectivity between Latin America, the United States and Europe through a large international fiber optic network, and operates a global MPLS network with POPs in over 100 countries around the world. The company sought to leverage its extensive MPLS footprint to deliver enterprise VoIP services to multinational corporate accounts.
Telefónica deployed Acme Packet Net-Net Session Director session border controllers (SBCs) and Acme Packet Net-Net Session Router session routing proxies (SRPs) to accelerate the implementation of the new enterprise VoIP service. The Acme Packet solutions enable Telefónica to offer an extended enterprise telephony service portfolio that provides extensive international coverage, offers industry-leading end-to-end service quality assurances and is compatible with a wide range of customer equipment.
This story was originally published on www.acmepacket.com.
Telefónica needed to evolve its network infrastructure to support new IP-based telephony services. The project team faced a very aggressive deployment schedule, with a goal of launching the service within six months from project onset. Extending interactive voice and other IP communications services across network borders introduces security, interoperability and service quality challenges that can delay service rollouts and lead to poor customer experiences and lost revenue. Telefónica sought a session border control and session routing solution to mitigate multi-vendor interoperability and multi-protocol interworking issues, protect and segregate customer networks, and ensure high service quality and availability.
After an extensive RFP process and exhaustive lab evaluation involving several competitive solutions, Telefónica selected the Acme Packet Net-Net Session Director SBC and the Acme Packet Net-Net Session Router SRPs as the foundation for the new IP telephony service. The Net-Net Session Director SBCs and Net-Net Session Router SRPs are used to transport and control voice traffic, to perform Class 4 routing functions, to enable SIP trunk connectivity to national operators, to facilitate interoperability between different IP-PBX and UC vendors and between different VoIP protocols, and for collecting and reporting accounting data, QoS metrics, and security information.
The Net-Net Session Director addresses Telefónica’s critical security, interoperability and service quality challenges, enabling the secure, efficient and reliable delivery of session-based IP communications.
Key features include:
Telefónica implemented a layered network architecture consisting of distinct access, interconnect, session routing and value-added service tiers. The access layer provides a secure and normalized interface between customer equipment and the network core, while the interconnect layer provides a secure and normalized interface between interconnect carriers and the network core. The session routing layer provides Class 4 session routing functions across the entire network. The value-added service layer leverages a third-party VoIP platform to deliver network-based telephony services and functions such as IP Centrex, unified communications services, and customer-specific dial plans.
The layered network architecture enables ultimate flexibility and scalability (each layer scales independently) while providing a consistent user experience across the network. By centralizing key routing and service control functions, and decoupling network services from UC servers and IP-PBXs, the architecture simplifies provisioning and configuration tasks and dramatically reduces operations and management overhead.
Telefónica deployed Acme Packet Net-Net Session Director SBCs as the access layer and interconnect layer border control elements and Acme Packet Net-Net Session Router SRPs as the core routing elements for the session routing layer. The Acme Packet solutions are installed in Telefónica POPs in the United States, Europe and Asia. Each POP includes an Acme Packet Net-Net 4500 platform (high availability configuration) that performs both access and interconnect-layer SBC functions plus an Acme Packet Net-Net 4500 platform that performs core SRP functions.
The Acme Packet solutions enabled Telefónica to meet their aggressive deployment schedules while containing capital equipment and operations expenses. The company achieved their goal of leveraging their large MPLS footprint to deliver enterprise VoIP services with market-leading SLAs and carrier-class availability.
Key benefits include:
Acme Packet Net-Net SBCs and Net-Net SRPs provide a solid foundation for future applications. The standards-based solutions will allow Telefónica to roll out new capabilities and migrate to a next-generation IMS architecture in a graceful fashion. Based on the initial success of the project, Telefónica plans to introduce a number of additional SIP-based value-added services including videoconferencing, presence, and instant messaging functions.