Technical Writeup

AI-Powered Omnichannel Customer Communication

A scalable, intelligent engagement platform that orchestrates SMS, WhatsApp, and Voice interactions across 150,000+ customers using AI-driven personalization and automation.

1. About CEQUENS

CEQUENS is a leading Communications Platform as a Service (CPaaS) provider headquartered in the Kingdom of Saudi Arabia, serving enterprise and government clients across the MENA region. The CEQUENS Communication Platform (CCP) is a proprietary, multi-channel communication infrastructure that provides businesses with a reliable and efficient means of connecting with their customer base through a single, unified interface.

1.1 Platform Capabilities

Communicate
Premium APIs: SMS API, On-Premises SMS Gateway, Voice API, Two-Way SMS API, Number Discovery API, Google RBM API, WhatsApp Business API, Push Notifications, and E-Fax.
Engage
Campaign Wizard, CEQUENS Chat, GenAI Chatbot, GenAI Platform, WhatsApp Business API, Apple Business Chat, Facebook Messenger, Instagram, and Google RBM.
Secure
CEQUENS Verify for multi-factor authentication, built to validate user identities for businesses with OTP, TOTP, and multiple verification channels.

1.2 Platform Performance

9,000+ SMS/sec
Average inbound throughput with 10,000+ SMS/sec outbound. 9M+ SMS processed per hour on a single installation.
<100ms Transit Time
Average handling time for OTP and critical traffic. 18B+ SMS/year successfully delivered on single installation.
200+ Routes
Adaptive smart routing with direct connections to all KSA operators. 100+ VPN connections and 6 provider licenses from local regulatory authorities.
T4 Datacenters
Multi-location hosting across Riyadh and Jeddah with separate DR site. 24/7 live support with real-time traffic dashboards and 120+ configurable parameters.

1.3 Proven Enterprise Track Record

CEQUENS operates two KSA business entities—CEQUENS KSA and Deewan KSA—with a combined portfolio of major government and enterprise clients:

Client Scope Contract Value
Saudi Electricity Company (SEC) SMS + Voice Messaging 95,400,000 SAR
King Abdullah University Hospital SMS + WhatsApp 731,400 SAR
Princess Nourah University SMS + WhatsApp + Chatbot 621,713 SAR
Johns Hopkins Aramco Healthcare SMS 648,000 SAR
Jeddah Airports Company SMS 2,119,500 SAR
Saudi Railway Company (SAR) SMS 384,000 SAR
Dammam Airports Company (DACO) SMS 360,000 SAR
Tadawul (Saudi Exchange) WhatsApp Business 50,000 SAR
Gulf International Bank, ELM KSA, SIMAH SMS

Combined active contract value exceeds 100M SAR across government, healthcare, financial, and transportation sectors.

2. Solution Overview

This solution implements an AI-driven, multi-channel customer communication program designed to execute targeted outreach at scale. The system processes 150,000 customers through 6 interactions per customer per month, generating 900,000 monthly messages distributed across three communication channels over a 36-month contract period.

2.1 Objectives

2.2 Scale Parameters

Parameter Value Notes
Customer base 150,000 Active target customers
Interactions per customer 6 / month Across all channels combined
Monthly interactions 900,000 150,000 × 6
Contract duration 36 months 3-year engagement
Total interactions 32,400,000 Over full contract period

3. Channel Strategy

The recommended channel mix balances cost efficiency with engagement quality. Each channel serves a distinct purpose in the customer journey:

Channel Mix Unit Cost Monthly Volume Monthly Cost
SMS 70% 0.034 SAR 630,000 msgs 21,420 SAR
WhatsApp 20% 0.250 SAR 180,000 msgs 45,000 SAR
Voice 10% 0.500 SAR 90,000 calls 45,000 SAR
Total 100% 900,000 111,420 SAR

3.1 SMS (70% of volume)

SMS serves as the primary channel for high-volume, cost-effective notifications. At 0.034 SAR per message, it is the most economical channel and ensures universal reach—every mobile device supports SMS without requiring app installation or data connectivity.

3.2 WhatsApp (20% of volume)

WhatsApp delivers rich, interactive experiences for higher-value customer interactions. At 0.25 SAR per message, it provides significantly higher engagement rates than SMS through media support, read receipts, and interactive buttons.

3.3 Voice (10% of volume)

Voice calls are reserved for the highest-priority interactions where personal engagement drives outcomes. At 0.50 SAR per call, voice is the premium channel for time-sensitive and high-value communications.

4. AI-Powered Intelligence Layer

The platform leverages artificial intelligence at every stage of the communication lifecycle to maximize engagement while minimizing cost and customer fatigue.

Channel Selection AI
Analyzes customer behavior, preferences, and historical response rates to automatically route each interaction to the optimal channel per customer.
Send-Time Optimization
Machine learning models predict the best delivery window for each customer based on past open/response patterns, timezone, and behavioral signals.
Content Personalization
GenAI-powered message generation adapts tone, language, and content to individual customer profiles and interaction context.
Anomaly Detection
Real-time monitoring detects delivery failures, unusual response patterns, and usage anomalies. Alerts trigger automatic channel fallback or escalation.

4.1 Decision Flow

Customer Record | v +-------------------+ | AI Decision Engine| | | | - Channel pref | +-------+ +---------+ | - Cost threshold |---->| SMS |---->| Deliver | | - Time-of-day | +-------+ +---------+ | - Message type | | - Past engagement | +-----------+ +---------+ | |---->| WhatsApp |---->| Deliver | | | +-----------+ +---------+ | | | | +-------+ +---------+ | |---->| Voice |---->| Deliver | +-------------------+ +-------+ +---------+ | v +-------------------+ | Analytics & | | Feedback Loop | +-------------------+

5. Technical Architecture

5.1 Platform Components

+------------------------------------------------------------------+ | CEQUENS Communication Platform (CCP) | | | | +------------------+ +------------------+ +----------------+ | | | SMS Gateway | | WhatsApp BSP | | Voice Platform | | | | - HTTPS/SMPP/ | | - Meta Graph API | | - SIP/VoIP | | | | SOAP/REST APIs | | - Template mgmt | | - IVR engine | | | | - DLR Handler | | - Session mgmt | | - TTS/STT | | | | - Unicode/concat | | - Rich media | | - Call record | | | +------------------+ +------------------+ +----------------+ | | | | | | | +-------------------------------------------------------+ | | | Intelligent Routing & Traffic Management | | | | - Ported Number Routing - Traffic Prioritization | | | | (Number Discovery/SS7) (Critical/Urgent/Std) | | | | - Automatic Operator - Adaptive Smart Routing | | | | Failover - 200+ Route Alternatives | | | +-------------------------------------------------------+ | | | | | | | +-------------------------------------------------------+ | | | CEQUENS Console & API Layer | | | | - Campaign Wizard + AI - Sub-Account Cost Centers | | | | - Sender ID Management - Credit & Billing Mgmt | | | | - SSO (LDAP) + MFA - IP Whitelist + Audit Log | | | | - Analytics & Dashboards - Role-based Access | | | +-------------------------------------------------------+ | +------------------------------------------------------------------+ | | | +-------------+ +--------------+ +---------------+ | Client | | Monitoring & | | IPsec VPN | | Systems | | Observability| | Site-to-Site | | (CRM/ERP) | | (Proactive | | Connectivity | | | | Alerting) | | | +-------------+ +--------------+ +---------------+

5.2 Connectivity Interfaces

The platform provides multiple integration interfaces to accommodate various protocols and integration modes:

Interface Protocol Use Case
HTTPS RESTful API REST/JSON Primary API for web/mobile applications, campaigns, and reporting
SMPP SMPP v3.4 over TLS High-throughput SMS for legacy and telecom-grade integrations
SOAP XML/SOAP Enterprise system integration (ERP, CRM)
Webhooks HTTP POST callbacks Delivery receipts, inbound messages, and event notifications

5.3 SMS Gateway Capabilities

5.4 CEQUENS Console

A comprehensive web-based management interface providing full operational control:

5.5 Hosting & Disaster Recovery

Gateways and load balancers are deployed across multiple locations including Riyadh and Jeddah, with a Disaster Recovery (DR) site at a completely different hosting provider in a separate geographic location. All servers are classified as Tier 4, ensuring maximum availability and resilience against natural disasters and technical failures.

5.6 Reliability & SLA

Metric Target
Platform uptime 99.95%
SMS delivery rate ≥ 97%
OTP transit time < 100ms average
WhatsApp delivery rate ≥ 95%
Voice connection rate ≥ 85%
API response time (p95) < 200ms
Failover switchover < 30 seconds

5.7 Support Tiers & Response Times

Priority Definition Standard Silver Gold
P1 — Critical Total outage, multi-network failure 30 min / 24×7 30 min / 24×7 15 min / 24×7
P2 — Major SPAM, partial OTP delay, failed campaigns 1 hour 1 hour / 24×7 30 min / 24×7
P3 — Moderate Low-volume delivery, content/sender issues 1 hour 1 hour / 24×7 30 min / 24×7
P4 — Minor Reporting issues, general inquiries 2 hours 1 hour / 24×7 1 hour / 24×7

Gold tier includes a dedicated 24/7 traffic monitoring dashboard, QoS reporting, and proactive alerting via SMS, email, and voice for delayed traffic, operator switching, and automated failover events.

6. Cost Summary

Period Interactions Estimated Cost
Monthly 900,000 111,420 SAR
Annually 10,800,000 1,337,040 SAR
36-month contract 32,400,000 4,011,120 SAR
Average cost per interaction: 0.1238 SAR

Blended across all channels at the recommended 70/20/10 mix. Actual cost varies based on channel distribution adjustments. Use the Cost Simulator to model alternative scenarios.

All prices are exclusive of VAT. VAT (15%) will be calculated and applied on the invoice. Pricing is based on the recommended channel mix (70% SMS / 20% WhatsApp / 10% Voice) and may vary based on actual usage and volume tier adjustments.

7. Implementation Plan

CEQUENS adopts the PRINCE2 project management methodology with Agile delivery practices, ensuring structured governance with iterative implementation. Weekly progress reports cover milestones, KPIs (delivery rates, transit time), risks, and next steps.

Phase 1 — Initiation & Planning (Week 1–2)

Phase 2 — Integration & Configuration (Week 3–5)

Phase 3 — Testing & Pilot (Week 5–7)

Phase 4 — Go-Live & Traffic Migration (Week 7–8)

Phase 5 — Training & Handover (Week 8–9)

Phase 6 — Ongoing Operations (Month 3+)

8. Cybersecurity & Compliance

CEQUENS Communication Platform is designed on five layers of security to ensure that information flow, transit, and storage are protected at all times. CEQUENS achieved a 95% score in its most recent CST Audit, classified as a low-risk company.

Application Layer
MFA enforcement, strict password policies, session management, IP whitelisting, suspicious account deactivation, and periodic vulnerability scans (WAS).
Content Layer
Sender ID whitelisting to prevent impersonation, content filtration/censorship, and automatic balance notifications to detect unexpected usage.
Interface Layer
Blocks message requests through unspecified interfaces. Unauthorized access attempts are blocked and administrators are notified immediately.
Datacenter Layer
Tier 4 datacenters certified: SOC 1/2, PCI/DSS Level 1, ISO 27001, FISMA, FedRAMP, FIPS 140-2, HIPAA, CSA, and MPAA.

8.1 Encryption

8.2 Regulatory Compliance

Standard Scope
NCA ECC-1:2018 Essential Cybersecurity Controls — Saudi NCA infrastructure compliance
NCA CCC-1:2020 Cloud Cybersecurity Controls — cloud-hosted infrastructure
NCS-1:2020 National Cryptographic Standards — IPsec tunnels and TLS implementation
ISO 27001 Information security management system
ISO 20000 IT service management certification (in progress)
ITIL V4 / PRINCE2 Service management and project delivery frameworks
Hawsabah Portal CITC Sender ID registration compliance for all KSA operators

8.3 Network Connectivity

CEQUENS provides secure IPsec VPN Site-to-Site connectivity to client infrastructure. SMS traffic exclusively utilizes direct operator links for local mobile operator networks. The platform supports SMPP over TLS 1.2 for telecom-grade integrations with full end-to-end encryption.

9. Why CEQUENS

Local Expertise
KSA-headquartered with 6 provider licenses from local regulatory authorities. Direct connections with all mobile network operators including MVNOs. Deep understanding of CITC, NCA, and Hawsabah requirements.
Proven at Scale
95.4M SAR contract with Saudi Electricity Company. 1.2B+ monthly banking transactions processed. 18B+ SMS/year on single installation. Serving SEC, Aramco Healthcare, Tadawul, Jeddah Airports, and Princess Nourah University.
Full Stack CPaaS
Single vendor for SMS, WhatsApp, Voice, Chatbot, GenAI, Campaign Wizard, and OCC — eliminating multi-vendor complexity with unified console, analytics, and billing.
AI-Native Platform
GenAI-powered AI Assist for campaign content generation, summarization, and tone adjustment. Intelligent traffic prioritization and adaptive smart routing built into the core engine.
Enterprise Security
95% CST Audit score. Five-layer security architecture. NCA ECC/CCC compliant. AES-256 at rest, TLS 1.2+ in transit. Tier 4 datacenters with SOC 1/2, PCI-DSS, ISO 27001.
Dedicated Support
Gold tier: 15-min P1 response 24/7, dedicated traffic monitoring, proactive alerting via SMS/email/voice, and ITSM framework aligned to ITIL V4 with Six Sigma continuous improvement.

Model Your Costs

Use the interactive simulator to adjust customer counts, interaction frequency, channel mix, and unit costs to match your specific requirements.

Open Cost Simulator