About the client
Call Loop is a web platform for SMS marketing that provides automated voice and messaging services. It allows businesses and organizations to send out mass text messages, voice broadcasts, and voicemail drops to contacts.
Country:
USA
Industry:
Telecom
Service:
Web development
Duration
March, 2022 – ongoing
Model:
B2B, B2C
Team size:
1 project manager, 1 front-end developer, 2 back-end developers, 1 DevOps, 2 QA engineers, 1 designer
Key technologies:
React, Java, AWS Services
Client’s challenge
Call Loop aims to enhance businesses' communication with their customers by creating a reliable, efficient, and scalable automated text message marketing software.
Their initial Martech product, Call Loop 1.0, reached its technological deadlock. The outdated technology, the abundance of custom-written code, and the dispersed nature of the backend led to unstable functionality performance and effort-consuming maintenance.
Their initial Martech product, Call Loop 1.0, reached its technological deadlock. The outdated technology, the abundance of custom-written code, and the dispersed nature of the backend led to unstable functionality performance and effort-consuming maintenance.
- Outdated design
- Unstable performance
- Legacy back-end architecture
- Inefficient custom-written code
- Bugs and errors
- Difficult maintenance
Solutions
We fully reimagined the Call Loop 1.0 solution, revamping it with a modern design, cutting-edge technologies, and a clear, user-friendly interface. Our team has introduced new features that elevate marketing efforts, including multi-channel messaging, seamless integrations, and powerful analytics.
New architecture
We built a new architecture for a SMS marketing software for business, adopting a service-oriented approach. It consists of three services: Config Service, Billing Service, and Lambda layer, each one responsible for its domain. New architecture ensures proper component integration and easier maintenance. The services communicate with each other via HTTP protocol or using asynchronous queues with AWS SQS.
Custom functionality
Within the implementation, we also contributed to enhancements and debugging of Call Loop 1.0 functionality. The added features include: Voice Broadcasts, SMS Messaging, Voicemail Drops, Autoresponders, 3rd party integrations, Analytics and Reporting.
Enhanced usability
We successfully launched Call Loop 2.0, developed from scratch, introduced new features, backend architecture and a modern UI/UX design. The introduction of automatic toll-free number verification via IP resulted in faster, automated client onboarding. These enhancements have significantly improved text message software integration, maintenance, efficiency, and scalability, driving positive business outcomes.
Data migration
Our team migrated 70% of initial user profiles from Call Loop 1.0 to Call Loop 2.0, maintaining their daily business operations. The rest of the users from Call Loop 1.0 are being migrated, with careful attention to secure data transfer and system integrity throughout the process.
Want to hire SMS marketing software developers? NEKLO has the expertise you need!
Business development manager
Anastasia Vasilevich
Technologies
Front-end
GraphQL
MobX
REST API
React
TypeScript
Back-end
Apache Kafka
GraphQL
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Java
Java Persistence API
Node.js
REST API
RabbitMQ
Spring Boot
TypeScript
DevOps
AWS API Gateway
AWS Amazon OpenSearch Service
AWS Aurora
AWS CloudFront
AWS CloudWatch
AWS EC2
AWS ECR
AWS EKS
AWS ElastiCache
AWS Lambda
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AWS MSK
AWS S3
AWS SQS
ELK Elasticsearch
ELK Integrations
ELK Kibana
Grafana
PostgreSQL
Prometheus
Redis
Deliverables
New app architecture
Implementation of the HTTP
Asynchronous queues
Proxy development
Automatic number verification
SMS marketing special features
Results
The new architecture and technology stack of Call Loop 2.0 enables faster processing times and more reliable service. We helped reduce downtime and improve overall performance. NEKLO lowered operational costs by implementing more efficient AWS services and open-source tools than using paid services like New Relic.
Call Loop offers SMS marketing services in the US and Canada, with plans to expand to Europe and Australia. We help the client to handle regulatory compliance implementing all the required data protection laws and regulations for specific regions.
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