Custom Telephony & Voice Engineering
Bespoke Microsoft Teams Voice Development
Bridge Microsoft Teams Direct Routing, Graph APIs, and SBCs with custom CRMs, internal line-of-business apps, and automated workflows.
Specialized capabilities
Engineering work across Teams voice, SIP, and the systems your agents already use.
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Custom CRM & LOB Screen Pops
Trigger automated inbound and outbound caller popups, log call records, and sync identity data directly into custom web apps or CRMs via Microsoft Graph API.
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Direct Routing & Custom SBC Logic
Custom SIP header manipulation, complex call routing script development, and SBC logic (AudioCodes, Ribbon, Kamailio, Asterisk) for Teams Direct Routing.
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E-commerce & Order Telephony Sync
Connect caller IDs automatically with order histories (Shopify, WooCommerce, custom backends) to give support teams instant context before picking up.
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Voice Bots & Graph Communications API
Build custom IVRs, voicebots, and call automation workflows integrated into Microsoft Teams infrastructure.
Built on the VoIP Toolbox platform
Teams testing, Pulse scenarios, and a pipeline API. The same platform we use while a custom integration is built and proved.
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Microsoft Teams
Direct Routing, scripted call scenarios, and Teams call records. The same hosted path we use to prove a custom voice integration.
Teams call testing -
Pulse
Scheduled call scenarios, IVR and DTMF paths, and the SIP evidence from each run.
See Pulse -
Integration API
Run those scenarios from GitHub Actions or Azure DevOps. Health gates and suite runs sit in the pipeline your team already uses.
CI/CD integration
How we work
Scope the SIP and API surface, build the integration layer, then prove the call flows before they hit production.
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Requirements & Architecture Scoping
Assess SIP infrastructure, SBC requirements, and API endpoints.
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Custom Middleware & Webhook Development
Build high-reliability integration layers using modern APIs.
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Automated Testing & Deployment
Validate scenarios with VoIP Toolbox Pulse prior to production rollout.
Have a Complex Teams Voice Requirement?
Talk directly with our VoIP development team to scope your custom integration.