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IPX and GRx Integration

IP eXchange (IPX) and GPRS Roaming eXchange (GRx) are critical protocols for global roaming and interconnection services.

Overview

IPX and GRx provide:

  • Global roaming connectivity
  • Quality of Service (QoS)
  • Secure interconnection
  • Service-aware routing
  • Real-time charging

IPX Configuration

Basic Setup

const ipxConfig = {
  networkId: 'ipx.example.com',
  services: ['voice', 'data', 'signaling'],
  qosClass: 'premium',
  redundancy: true
};

const client = await telcoapi.ipx.createClient(ipxConfig);

QoS Parameters

const qosProfile = {
  latency: {
    max: 100,    // ms
    target: 50   // ms
  },
  jitter: {
    max: 30,     // ms
    target: 15   // ms
  },
  packetLoss: {
    max: 0.1,    // %
    target: 0.01 // %
  }
};

await client.ipx.setQoSProfile(qosProfile);

GRx Configuration

Network Setup

const grxConfig = {
  apnSettings: {
    internetApn: 'internet.mnc001.mcc001.gprs',
    imsApn: 'ims.mnc001.mcc001.gprs'
  },
  dnsServers: [
    'primary.dns.example.com',
    'secondary.dns.example.com'
  ]
};

const grxClient = await telcoapi.grx.createClient(grxConfig);

Roaming Configuration

const roamingPartners = [
  {
    mcc: '001',
    mnc: '001',
    services: ['2g', '3g', '4g'],
    priority: 1
  },
  {
    mcc: '002',
    mnc: '002',
    services: ['4g', '5g'],
    priority: 2
  }
];

await client.grx.configureRoaming(roamingPartners);

Service Integration

Voice Services

const voiceService = {
  codec: {
    preferred: ['EVS', 'AMR-WB'],
    fallback: ['AMR', 'G.711']
  },
  transcoding: {
    enabled: true,
    quality: 'high'
  }
};

await client.ipx.configureVoiceService(voiceService);

Data Services

const dataService = {
  apnMapping: {
    'internet': 'ipx.internet.example.com',
    'ims': 'ipx.ims.example.com'
  },
  trafficPolicies: {
    defaultBearer: {
      qci: 9,
      arp: 8,
      mbr: {
        uplink: '10Mbps',
        downlink: '50Mbps'
      }
    }
  }
};

await client.ipx.configureDataService(dataService);

Security

IPSec Configuration

const ipsecConfig = {
  mode: 'tunnel',
  encryption: 'aes256-gcm',
  integrity: 'sha256',
  pfs: 'group14',
  lifetime: 28800
};

await client.ipx.configureIPSec(ipsecConfig);

Access Control

const accessPolicy = {
  allowedPeers: [
    '192.0.2.0/24',    // IPX network
    '198.51.100.0/24'  // GRx network
  ],
  serviceRestrictions: {
    'voice': ['001-001', '002-002'],
    'data': ['*']
  }
};

await client.ipx.setAccessPolicy(accessPolicy);

Monitoring

Traffic Monitoring

client.ipx.on('trafficStats', (stats) => {
  console.log('Voice Traffic:', stats.voice.currentTps);
  console.log('Data Traffic:', stats.data.throughput);
  console.log('Signaling Load:', stats.signaling.load);
});

QoS Monitoring

client.ipx.on('qosAlert', (alert) => {
  console.log(`QoS Alert: ${alert.type}`);
  console.log(`Service: ${alert.service}`);
  console.log(`Current Value: ${alert.value}`);
  console.log(`Threshold: ${alert.threshold}`);
});

Charging and Billing

Real-time Charging

const chargingConfig = {
  ratingRules: [
    {
      service: 'voice',
      rate: 0.01,  // per minute
      currency: 'EUR'
    },
    {
      service: 'data',
      rate: 0.05,  // per MB
      currency: 'EUR'
    }
  ]
};

await client.ipx.configureCharging(chargingConfig);

Usage Reports

const report = await client.ipx.generateUsageReport({
  startDate: '2024-01-01',
  endDate: '2024-01-31',
  services: ['voice', 'data'],
  format: 'TAP'
});

Best Practices

  1. Redundancy Setup 

    const redundancyConfig = {
  mode: 'active-active',
  failoverTimeout: 30,
  loadBalancing: 'round-robin'
};

await client.ipx.configureRedundancy(redundancyConfig);

  2. Traffic Management 

    const trafficManagement = {
  throttling: {
    voice: 1000,  // calls per second
    data: '10Gbps'
  },
  overflow: {
    enabled: true,
    redirectTo: 'backup.ipx.example.com'
  }
};

  3. Monitoring Setup 

    const monitoring = {
  metrics: ['qos', 'traffic', 'security'],
  interval: 60,
  alerting: {
    email: 'noc@example.com',
    webhook: 'https://alerts.example.com/webhook'
  }
};

await client.ipx.configureMonitoring(monitoring);

Reference