# Fallback Routing Overrides

To ensure unbroken customer service experiences during runtime script failures, **Asterisk 2** defines absolute **Fallback Routing Directives**. The AppFlow framework routes broken visual flows down to operational emergency paths cleanly.

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## Emergency Fallback Topology

The layout below illustrates how unhandled script exceptions shift callers directly onto live enterprise assistance lines:

```mermaid
graph LR
    %% Catch Engine
    subgraph ExecutionKernel["AppFlow Execution Loop"]
        CatchError["Unhandled Node Traversal Exception<br/>(e.g., Network Request Failure)"]
    end

    %% Resolution
    subgraph InterceptLogic["Escalation Resolution Layer"]
        LoadFallback["Load Tenant Fallback Config<br/>(Resolves Property: DefaultSupportQueue)"]
    end

    %% Safe Endpoints
    subgraph OperationalTargets["Standard PBX Support Endpoints"]
        RouteQueue["Route to Live Operator Queue<br/>(Stasis Mixing Bridge / Queue App)"]
        RouteVoicemail["Route to Organizational Voicemail<br/>(Plays Apology Prompt string)"]
    end

    %% Links
    CatchError ==>|"Trap Runtime Failure"| LoadFallback
    LoadFallback ==>|"Target Operators Available"| RouteQueue
    LoadFallback -->|"Operators Offline"| RouteVoicemail

    %% Elegant Aesthetic Schemes
    classDef kernelToken fill:#0f172a,stroke:#38bdf8,stroke-width:2px,color:#fff,rx:6px,ry:6px;
    classDef intToken fill:#312e81,stroke:#ec4899,stroke-width:2px,color:#fff,rx:6px,ry:6px;
    classDef targetToken fill:#1e293b,stroke:#a855f7,stroke-width:2px,color:#fff,rx:6px,ry:6px;

    class ExecutionKernel,CatchError kernelToken;
    class InterceptLogic,LoadFallback intToken;
    class OperationalTargets,RouteQueue,RouteVoicemail targetToken;
```

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## Default Fallback Routing direct properties

### 1. Integrated Operator Transfer Triggers
When logical node setups throw execution errors, application controllers intercept termination directives instantly to redirect live audio paths onto central PBX agent pools, completely avoiding unhandled call hang-ups.

### 2. Voicemail Escapes
If target call centers remain offline, emergency modules route calls directly to structured message repositories, recording inbound context tokens cleanly for historical customer auditing.