Challenges
Challenges of Adding Voice to Microsoft Teams
Integrating voice into Microsoft Teams offers huge benefits but also presents several challenges organisations need to overcome for a successful deployment:
Connecting existing PBX environments, carriers and SIP trunks with Microsoft Teams requires careful configuration of SBCs, routing rules, firewall settings and number porting.
Without the right setup, organisations risk interoperability issues, misrouted calls or service disruption.
Because Teams Direct Routing delivers voice over IP, call quality relies on stable bandwidth, correct QoS and low latency across all locations.
Poor connectivity or misconfigured networks can lead to jitter, delays, dropped calls and inconsistent user experience.
SIP-based voice increases exposure to threats like toll fraud, spoofing and eavesdropping.
At the same time, regional telecom regulations, number portability and emergency calling requirements add complexity for organisations operating across multiple sites or countries.
Solutions
Our Comprehensive Microsoft Teams Phone Solution
IDS-INDATA provides fully managed Microsoft Teams solutions that bring secure, scalable calling into your Teams environment. Whether you are replacing legacy systems or rolling out services across new regions, we ensure a smooth transition and a platform built for longer-term growth.
We deliver secure, fully managed Microsoft Teams voice solutions that scale with your organisation, whether you’re moving away from legacy systems or expanding across global sites.
From strategy and design to deployment and ongoing support, we take care of every stage of your Teams phone journey, ensuring a smooth rollout and reliable long-term operation.
Our experts integrate Teams with your existing infrastructure, including legacy systems and multi-vendor environments, creating a single, secure, and unified communications platform that protects your investment.
We provide guidance at every step, from assessing your current voice estate to user adoption and training, so you get the most out of your Microsoft Teams investment.
With voice services available in most countries, we support organisations of every size – from local businesses to FTSE 250 enterprises – with consistent quality and compliance across regions.
We offer you:
- Direct Routing solutions with full session border controller configuration and management.
- Flexible voice calling plans delivered over our global SIP network.
- End-to-end Teams administration and management, ensuring reliability and security.
- Integration with existing voice platforms to extend the life of your current investments.
- Global PSTN access with seamless number porting, backed by strong carrier partnerships and regulatory expertise.
- Industry-specific integrations for healthcare, manufacturing, and logistics – including wireless handsets, alarms, and messaging systems for voice alerts and personal safety communications
Speak to a Teams Specialist
Your technology partner
Our Flexible Managed Microsoft Teams Phone Services
Every organisation uses Microsoft Teams differently. At IDS-INDATA, we provide expert support across the full spectrum of Microsoft Teams Services voice licensing models – ensuring each user receives the right feature set, and your telephony environment stays secure, scalable, and cost-efficient.
| Features | Managed Microsoft Teams Direct Routing | Managed Microsoft Teams Direct Routing + GCSS | Managed Microsoft Teams Direct Routing + GCSS + Licensing Included |
| Core Teams Features: Teams, Channels, Chat, Guest Access, Activity Feed, Meetings, Audio Conferencing |
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| Direct Routing |
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| Global Centralised SIP Services (GCSS): Centralised SIP, International DIDs & Calling Plans |
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| Microsoft Teams License + Phone System: Bundled Microsoft 365 Licensing with Voice Add-on |
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| Fully Managed Service |
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Why Choose IDS-INDATA for Microsoft Teams Phone Solutions?
With over 20 years of experience in cloud voice migration, we’ve guided organisations through the most complex transitions – enabling them to focus on what they do best.
Trusted by companies worldwide, our network delivers the reliability, reach, and resilience enterprises need.
Our specialists protect critical infrastructure and global corporations every day – bringing the same expertise to safeguard your organisation.
Our Approach
Our Approach to Microsoft Teams Direct Routing
At IDS-INDATA, we take a proactive, strategic approach to ensuring your Microsoft Teams Phone system runs securely, reliably, and at peak performance:
1. Discovery and Assessment
- We evaluate your current voice systems and user requirements to create a customised communication strategy.
Key Outcome: A comprehensive understanding of your existing voice architecture, call patterns, and needs – enabling a migration plan that balances continuity, cost and compliance.
2. Design and Strategy
- Our experts design a scalable, secure voice architecture for your business.
Key Outcome: A future-proof Teams Direct Routing design that delivers global reach, supports your number strategy, and aligns with your regulatory and quality requirements.
3. Deployment and Integration
- We manage the full migration, including Teams configuration, SBC setup, testing, and launch, ensuring minimal disruption.
Key Outcome: Seamless cut-over to Teams voice with minimal downtime, full legacy integration where needed, and assured call quality from day one.
4. Monitoring and Optimisation
- We continuously monitor and optimise your Teams and voice services, ensuring high call quality and rapid issue resolution.
Key Outcome: Reliable voice service, proactively maintained for performance and cost efficiency, supported by usage insights and continuous improvement.
Frequently Asked Questions
Microsoft Teams Direct Routing enables organisations to connect Microsoft Teams to the Public Switched Telephone Network (PSTN) using certified Session Border Controllers (SBCs) and SIP trunks. This integration allows you to make and receive external calls directly within Teams, transforming it into a fully featured phone system designed to meet your communication needs.
Unlike Microsoft Calling Plans, Direct Routing offers greater flexibility, cost efficiency, and control – particularly for organisations with complex communication needs, multiple locations, or existing telephony infrastructure.
With Direct Routing, you can:
- Retain and integrate existing phone numbers and legacy PBX systems.
- Optimise call routing with advanced policies tailored to your operations.
- Maintain control over infrastructure while benefiting from Teams’ unified interface.
- Work with a trusted provider like IDS-INDATA to manage setup, security, compliance, and ongoing performance.
Yes. Direct Routing is ideal for organisations with existing PBX infrastructure or complex voice environments. It allows you to phase in Teams telephony while still supporting legacy systems during transition.
You’ll need:
- A Microsoft Phone System licence
- A certified Session Border Controller (SBC)
- SIP trunk or equivalent telephony provider
IDS-INDATA handles all of this for you – including SBC configuration, number porting, and call routing setup.
Yes. Our Direct Routing solutions support international PSTN breakout, regional number porting, and compliance with local telecom regulations – ideal for businesses expanding across multiple countries.
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