Patterns/Banking/BNK-014
BNK-014BankingBranch voiceTier IIICSL reviewed

Branch voice over SD-WAN

Centralised call control for hundreds of bank branches, with local survivability if the WAN drops. Reference design, plan, build templates and run book in one place.

Deployment model · updates architecture and build
Build with Actionboard AI
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01 · Overview

One numbering plan for every branch, and no dead phones when the WAN fails.

Problem

Branches run separate PBXs with different dial plans, no central recording and costly PSTN lines at every site.

Solution

A redundant IP-PBX cluster with central SIP trunks, carried to branches over SD-WAN, with a survivability gateway at each site.

Outcome

Four-digit dialing across the bank, central recording for compliance, and local calling that continues during WAN outages.

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02 · Plan

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Team & deliverables
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03 · Architecture

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Mapped to PCI DSS 4.0 and Bangladesh Bank ICT Security Guideline controls.
04 · Build

Build it yourself, or let Actionboard AI build and deploy it.

CSL GitHub

Open-source reference configs, IaC modules, dial plans and test suites for this pattern.

git clone https://github.com/cslbd/patterns.git && cd patterns/bnk-014
Actionboard Solution AI Build & DeployService

Actionboard AI generates the configuration for your sites, provisions the {{ modeName }} environment and hands the run to a CSL-certified engineer for sign-off.

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Cloud deployment templates

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05 · Run

Operate it with targets, runbooks and AIOps.

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Deploy BNK-014 for your bank

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