Keep enterprise SIP connectivity running when it matters most by deploying a redundant pair of AudioCodes M4KESBC appliances with on-site implementation support. This service delivers hands-on installation at your site: physical racking and cabling coordination with onsite staff, pair-based configuration for active/standby redundancy, SIP trunk and routing validation, scripted failover testing, and documentation of the final configuration. Engineers will perform acceptance tests and provide an operational handoff that includes failover verification and rollback procedures. For procurement and architecture teams, this engagement reduces project risk, consolidates accountability for cutover tasks, and shortens the window between install and production readiness. Use this service when high-availability voice, regulatory uptime targets, or complex network topologies demand vendor-backed, on-site delivery and verification.