Overview
CallTower was the first solution provider to deliver an integrated Office 365 Native Microsoft Teams experience with global calling plans. As a Microsoft Gold Partner, CallTower offers:
- 24/7/365 client services.
- Personalized implementation, adoption, training, and support strategies.
- Monitoring and management services for the highest quality user experience.
The Microsoft Teams Phone System powered by CallTower enables customers to bring their current voice services into the Microsoft Cloud through Direct Routing. This ensures:
- Leveraging CallTower’s preferred rates.
- Unlocking the full potential of a Microsoft Teams Phone System.
- Redirecting calls to alternate numbers during Microsoft outages.
Global PSTN Cloud Infrastructure
Key Highlights:
- Integrated with Microsoft Teams Cloud (Direct Routing).
- No customer premise SBC required.
- Microsoft-certified SBCs (Sansay).
- Redundant, geo-distributed core for 100% uptime.
- QoS-based secure networking using TLS and FQDN.
- Multi-platform integration for coordinated dialing across platforms.
Migration Strategies: Crawl – Walk – Run
- Consolidate PSTN by migrating all DID/DDI and toll-free services to CallTower.
- Reduce operating expenses and streamline management.
- Deploy CallTower Microsoft Teams PSTN (Direct Routing) where applicable.
- Integrate CallTower SIP Trunking with legacy systems (e.g., Microsoft Teams, Avaya, Cisco).
- Integrate TDM-based systems with CallTower SIP and TDM handoffs (PRI, E1, copper).
Global PSTN Coverage
CallTower provides services in over 100 countries across the Americas, EMEA, and APAC. Services include:
- New DID/DDI numbers.
- Porting of DID/DDI.
- Toll-free services.
- Emergency services.
- Coordinated dial plans.
- Global on-net no-charge calling.
Service Delivery Overview
CallTower assigns an experienced Implementation Team led by a veteran with over 25 years of experience. The team ensures smooth global deployments and includes:
- A Global Service Delivery Manager.
- Project managers.
- Support staff for large enterprise deployments.
Global Billing System
Features:
- Parent-child billing structure.
- Corporate/business unit summaries.
- Individual site services, costs, taxes, and surcharges.
- Usage billing details per site.
- Billing in local currency, if required.
Global Customer Portal & Management System
Secure Portal Includes:
- Invoice history.
- Charges summary and trending graphs.
- CDR access for secure download.
- Online payments.
- Quality monitoring tools with real-time visibility of call performance and quality scoring.
- Drill-down capabilities for specific call research.
