Author
Deniz Yakışıklı
Sr. Product Marketing Manager
Deniz is a Senior Product Marketing Manager at Telnyx with 10 years of experience in technology and healthtech marketing. She previously led go-to-market initiatives at Philips Healthcare, Vodafone, and The Coca-Cola Company. Originally from Türkiye and based in Amsterdam, she holds an MBA in Marketing Management from the University of Amsterdam and a Bachelor's degree in Industrial Engineering from Boğaziçi University. In her free time, Deniz enjoys yoga, traveling, and discovering nice restaurants.
- 13
- Articles
- 2020
- Joined
Latest articles
Everything Deniz has published, most recent first.
WhatsApp Business APIWhatsApp Business API: Pricing, Setup and Limits Guide for 2026
WhatsApp Business API explained for 2026: how templates and the 24-hour window work, what Meta and your provider charge, and how to send your first message.
WhatsApp Business APIThe best WhatsApp API providers in 2026
The 9 best WhatsApp API providers of 2026, ranked: each one's fee on top of Meta's, WhatsApp calling support and the team it suits best.
Numbers8 global number porting issues and how to solve them
Number porting issues stall a cutover when the losing carrier rejects the order. See the 8 rejection causes, what carriers cannot refuse and the fix for each.
SIP TrunkingSIP DID numbers: what they are and how they work
Learn what a SIP DID number is, how DIDs route over SIP trunks and channels, what a DID costs, and how to choose a SIP DID provider you can rely on.
Email APIBest email marketing service providers compared for 2026
Compare 11 email marketing service providers on editor, automation, deliverability, integrations, support and pricing, plus high-volume sender rules and a trial checklist.
Email APIEmail automation best practices that hold up at scale
Email automation best practices for teams running production sends: domain authentication, per-message state, and retries with exponential backoff from one API key.
VoiceVoice AI that never leaves the EU
Most enterprises deploying Voice AI in Europe have a data residency strategy. Far fewer have a data sovereignty strategy. Sovereignty is not a setting you select. It is a property of the call path.
Email APIEmail API: Send Transactional Email on One Platform
The Telnyx Email API is in beta, on the same carrier-owned platform that already runs your SMS, voice, and WhatsApp. One API key, one dashboard, one bill. This guide covers what it is, why we built it, and how to send your first email in five minutes.
NumbersChoosing the best phone number for your contact center
Should your contact center use a local or toll-free number? Learn how each impacts answer rates, customer trust, and engagement.
Conversational AIBuild Telnyx apps faster with AI agent skills
Let your AI coding assistant write Telnyx integrations. Install once, then describe what you want to build in plain English.
- Telnyx
Why did PatientSync choose Telnyx over Amazon Connect?
PatientSync left Amazon Connect for Telnyx to launch AI-driven call flows with better performance and global reliability.
- Conversational AI
Data Sovereignty for Voice AI in Australia
Most Voice AI platforms route Australian data through US and EU infrastructure. Telnyx runs 4,000+ co-located GPUs in Sydney with sub-500ms round-trip latency and full data sovereignty — at rest, in motion, and during processing.
Verify APIHere’s how to check if your number can be ported
Curious about whether you can port your numbers or not?
