# Dinstar IP Protocol Integrations

To exchange SIP messages across analog cellular channels, **Asterisk 2** configures dedicated handshaking instructions targeting **Dinstar hardware arrays**. The architecture maps explicit socket channels to individual modem registration ports.

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## Physical Gateway Socket Blueprint

The flowchart below outlines how logical call requests translate down into physical modem array assignments:

```mermaid
graph LR
    %% Outbound Request
    subgraph RequestSource["PBX Application Logic"]
        TargetCall["Outbound Route Dial<br/>(Target Number String)"]
    end

    %% Dispatch Node
    subgraph LoadBalancer["Kamailio Core Bridge"]
        SelectPort["Select Active Gateway Interface<br/>(Matches Pool IP Address)"]
    end

    %% Target Hardware Ports
    subgraph DinstarRacks["Physical Modem Modules"]
        PortA["Modem Port 0<br/>(Binds Local Interface 5062)"]
        PortB["Modem Port 1<br/>(Binds Local Interface 5064)"]
    end

    %% Flows
    TargetCall --> LoadBalancer
    LoadBalancer ==>|"Route over 192.168.10.50:5062"| PortA
    LoadBalancer -->|"Failover over 192.168.10.50:5064"| PortB

    %% Dark Mode Aesthetic System
    classDef reqToken fill:#0f172a,stroke:#38bdf8,stroke-width:2px,color:#fff,rx:6px,ry:6px;
    classDef bridgeToken fill:#312e81,stroke:#ec4899,stroke-width:2px,color:#fff,rx:6px,ry:6px;
    classDef rackToken fill:#1e293b,stroke:#a855f7,stroke-width:2px,color:#fff,rx:6px,ry:6px;

    class RequestSource,TargetCall reqToken;
    class LoadBalancer,SelectPort bridgeToken;
    class DinstarRacks,PortA,PortB rackToken;
```

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## Technical Handshaking Configurations

### 1. Independent Port Mapping Strings
Every GSM module card presents an isolated SIP identity registration over discrete port increments:
- **Port 0**: `5062`
- **Port 1**: `5064`
- **Port 2**: `5066`

### 2. Echo Cancellation Calibration
Hardware profiles implement strict non-linear echo processing (`echocancel=yes`) directly at the Dinstar DSP level. This scrubs analog reflection noises completely prior to delivering digital audio streams back to PBX listening blocks.