Centralized calling and policy
Coordinate dialing, routing, and external access from the headquarters plan.
Keep every financial branch connected through disruptions.
Unify head office and branch calls under a resilient voice plan, with secure inter-site connectivity and defined backup paths so teams remain reachable when a primary service is interrupted.
The continuity challenge
Keep local service available without fragmenting the branch network.
Each branch depends on central coordination, local reachability, and a clear response when its primary voice path is interrupted.
The architecture makes each layer visible: centralized calls, high-availability controls at headquarters, encrypted inter-site connectivity, local SIP and analog endpoints, and LTE backup at each branch.
Mixed local endpoints
Keep SIP and analog phones available through the branch voice platform.
Encrypted inter-site calls
Transfer calls between headquarters and branches via the approved VPN/SIP network.
LTE continuity at the branch
Define which calls switch to LTE and how primary service is restored.
Connect headquarters and branches through a secure, tiered voice architecture
A central SIP service reaches high-availability call control at headquarters, which connects each branch via encrypted VPN/SIP while retaining local SIP and analog phones and an LTE backup path in the operating plan.
Build the network around central control, local voice, and backup access.
Product selection follows branch scale, endpoint mix, headquarters resilience requirements, and the approved LTE continuity plan.
Make each continuity layer visible and testable.
Availability depends on the selected core, connectivity, and backup design; it is verified against the agreed branch call plan.
Secure branch interconnection
Headquarters and branch voice sites communicate via encrypted VPN/SIP paths.
Centralized call policy
Shared dialing, routing, and permissions maintain branch fleet coordination.
Headquarters resilience
High availability, dual power supplies, and protected storage support the central voice role shown.
Branch LTE continuity
Each branch receives a defined alternative access role and a restoration test.
Define a continuity plan for each financial branch.
Share the number of branches, endpoint mix, headquarters requirements, primary connectivity, and the calls that must survive an outage. OpenVox can map the secure primary design and LTE backup.
Related products
OpenVox MAG2000 Series Analog Gateway
Supports 16/24/32 FXO/FXS combination ports; 4 Gigabit Ethernet ports; Uses standard SIP protocol;
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