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About Simwood eSMS Limited
UK-based telecommunications provider specializing in SIP trunking and messaging
Simwood eSMS Limited is a UK-based telecommunications provider that specializes in SIP trunking, messaging services, and wholesale voice solutions for businesses and service providers. Founded in 2009, Simwood has grown to become a significant player in the UK telecommunications market, offering reliable and cost-effective communication solutions.
Core Services:
- SIP Trunking: Business VoIP solutions and SIP connectivity
- SMS Services: Bulk SMS, A2P messaging, and SMS APIs
- Voice Services: Inbound and outbound call routing
- Number Porting: UK number portability services
- Wholesale Solutions: Carrier-grade telecommunications services
- Emergency Services: 999/112 call handling and location services
Service Areas
Business Telephony
SIP trunking solutions for businesses of all sizes, from startups to enterprise
Service Providers
Wholesale services for other telecommunications providers and resellers
Developers & Integrators
APIs and technical solutions for custom communication applications
SIP Trunking Services
Flexible SIP trunking with UK geographic and non-geographic numbers
Simwood's SIP trunking service provides businesses with reliable voice connectivity, allowing companies to replace traditional phone lines with modern VoIP solutions while maintaining their existing phone systems.
Key Features:
- UK Phone Numbers: Geographic (01/02) and non-geographic (03/08) numbers
- Flexible Capacity: Scale channels up or down as needed
- Quality Routing: Multiple route options for optimal call quality
- Emergency Services: Full 999/112 emergency call support
- CLI Options: Presentation and validation of caller ID
- Fail-over: Redundancy options for business continuity
SIP Trunk Configuration
Registration-Based
Simple setup using username/password authentication for smaller deployments
IP Authentication
Enterprise-grade setup using IP address authentication for larger systems
Custom Routing
Advanced routing rules and call handling for complex requirements
SMS and Messaging Services
Bulk SMS
- High-volume SMS delivery
- UK and international destinations
- Delivery reports and tracking
- Sender ID customization
- Message scheduling
SMS APIs
- REST API integration
- Real-time delivery webhooks
- Two-way messaging support
- Message concatenation
- Unicode and emoji support
Compliance & Regulations
UK Regulations:
- Ofcom compliance for A2P messaging
- GDPR data protection compliance
- PECR marketing message regulations
- Opt-out mechanisms
Quality Assurance:
- Content filtering and validation
- Spam prevention measures
- Delivery optimization
- Network redundancy
UK Number Services
Geographic Numbers (01/02)
Local area code numbers for businesses wanting a local presence:
- London (020), Manchester (0161), Birmingham (0121)
- All major UK cities and towns available
- Instant allocation and activation
- Number porting from other providers
Non-Geographic Numbers
National numbers for businesses serving the whole UK:
- 03 numbers - local rate charges
- 0800 numbers - free to caller
- 0845/0870 numbers - revenue sharing
- Custom number options available
Number Porting
Keep your existing numbers when switching to Simwood:
- Simple online porting process
- Minimal downtime during transfer
- Support for bulk number porting
- Emergency fallback options
Pricing Structure
SIP Trunking Pricing
Transparent, usage-based pricing with no hidden fees:
- Per-minute billing for calls
- Monthly rental for phone numbers
- No minimum commitment required
- Volume discounts available
SMS Pricing
- Per-message pricing for UK SMS
- International rates vary by destination
- Bulk pricing for high-volume users
- Pre-paid credit system available
Business Packages
- Tailored packages for different business sizes
- Dedicated account management
- Custom pricing for enterprise customers
- Flexible payment terms available
Support and Resources
Technical Support
- UK-based support team during business hours
- Online ticket system for non-urgent issues
- Emergency support for critical service issues
- Technical documentation and guides
Customer Portal
- Real-time usage monitoring and billing
- Service configuration and management
- Call detail records and analytics
- Invoice history and payment management
Setup and Onboarding
- Free setup assistance for new customers
- Configuration guides for popular PBX systems
- Test accounts for service evaluation
- Migration support from other providers
Simwood Quick Stats
Compare Simwood with Other UK Providers
| Feature | Simwood | BT | Gamma | Voiceflex |
|---|---|---|---|---|
| SIP Trunking | ✓ | ✓ | ✓ | ✓ |
| UK Numbers | All Types | Limited | All Types | Geographic |
| SMS Services | ✓ | ✗ | ✓ | ✗ |
| Wholesale Focus | ✓ | ✗ | ✓ | ✓ |
| UK Based Support | ✓ | ✓ | ✓ | ✓ |
Frequently Asked Questions
What is SIP trunking?
SIP trunking replaces traditional phone lines with internet-based voice connectivity, allowing businesses to make and receive calls using their existing phone system over the internet.
Can I keep my existing phone numbers?
Yes, Simwood supports number porting for UK geographic and non-geographic numbers. The porting process is handled through their customer portal with minimal disruption.
Do you support emergency calls?
Yes, Simwood provides full 999/112 emergency call support with automatic location services for businesses using their SIP trunking services.
What's the minimum contract length?
Simwood operates on a month-to-month basis with no minimum contract requirements, giving businesses flexibility to scale their services as needed.
How do I integrate SMS services into my application?
Simwood provides REST APIs for SMS integration with comprehensive documentation. They support various programming languages and offer webhook delivery reports for message tracking.