Who is Sansay?
Sansay is a telecommunications technology vendor that provides software-based session control, interconnection, and routing platforms for service providers and enterprises deploying voice over IP and real-time communications.
- Session border controller platforms for Voice Over Internet Protocol (VoIP), Session Initiation Protocol (SIP) trunking, and interconnect (networking / communications infrastructure).
- Softswitch and call control functions for service providers and wholesale carriers (voice infrastructure).
- Support for SIP-based signaling, media handling, and policy enforcement across IP networks (real-time communications).
- Solutions for IP-based peering, least-cost routing, and traffic management between carriers and enterprises (network routing / interconnect).
- Management, monitoring, and configuration tools for operating Sansay platforms in carrier and enterprise environments (network operations).
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More About Sansay
Sansay focuses on software-based network elements used to control and secure IP voice and real-time communications traffic in carrier, cloud, and enterprise environments. Its platforms are typically deployed by wholesale carriers, retail service providers, cable operators, hosted PBX providers, and enterprises that operate SIP trunking or unified communications services. The company’s core offerings System Integration Testing (SIT) in the session border controller (SBC) (networking / communications infrastructure) and softswitch (voice infrastructure) categories, providing signaling, media, and policy functions required to operate carrier-grade VoIP networks.
At a technical level, Sansay products are associated with SIP (Session Initiation Protocol) for call signaling, Real-time Transport Protocol (RTP) and SRTP for media transport, and related VoIP protocols used for registration, call setup, tear-down, and feature invocation. The SBC components typically provide topology hiding, Network Address Translation (NAT) traversal, encryption, and access control for SIP-based services, while enforcing routing and security policies at the edge of carrier and enterprise networks. Softswitch and call control elements provide routing logic such as least-cost routing, number translation, and policy-based selection of interconnect partners or trunks.
Sansay’s solutions are positioned for use in IP interconnect and peering scenarios between carriers, as well as for SIP trunking connectivity between enterprises and service providers. In these deployments, the Sansay platforms act as control points that manage signaling interoperability, codec negotiation, and media anchoring between heterogeneous networks. Support for multiple signaling variants and carrier-specific interconnect requirements enables integration with domestic and international partners, wholesale transit providers, and legacy interconnect infrastructures that are in the process of migration to all-IP.
From an enterprise and service provider operations perspective, Sansay includes management and monitoring capabilities for provisioning, configuration management, and visibility into call traffic and network status. These functions support activities such as capacity planning, quality monitoring, troubleshooting, and enforcement of routing and security policies. The platforms are typically integrated into broader OSS/BSS environments through standard interfaces and are deployed in redundant architectures for high availability.
In marketplace and directory taxonomies, Sansay aligns with categories such as session border controllers, VoIP and SIP infrastructure, IP interconnect and peering platforms, and carrier voice core functions. Organizations evaluating SBCs, softswitches, or SIP trunking enablement platforms for carrier or large enterprise environments would generally treat Sansay as a vendor in the real-time communications infrastructure domain, with offerings centered on IP voice session control, routing, and interconnect.
Our description of Sansay. Updated December 2025.
