Biltech DigitalBiltech
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Communication Infrastructure

SMS, email, VoIP and 2FA infrastructure — setup, integration, management.

Problems we solve

  • SMS to customers is expensive or undeliverable; you need a wholesale channel.
  • Your emails land in spam; transactional delivery isn't reliable.
  • Your signup flow has no 2FA / OTP; security is weak.
  • Call center costs are rising; you're looking for a flexible cloud PBX.

What we deliver

  • Bulk SMS gateway integration and white-label panel
  • Transactional SMS and OTP/2FA services
  • Transactional email infrastructure (Resend, SendGrid) — including domain verification
  • WhatsApp Business API integration
  • VoIP and cloud PBX setup (FreePBX, 3CX, Twilio)
  • Push notification infrastructure (web + mobile)

How we work

1 — Volume and cost analysis: vendor selection based on your monthly volume
2 — Domain and sender authentication: SPF, DKIM, DMARC setup
3 — Integration and testing: gradual rollout with deliverability monitoring
4 — Monitoring and tuning: delivery reports, bounce management

Tech stack

TwilioResendSendGridMessageBirdVonagePlivoPostmarkWhatsApp Business APIFreePBXAsterisk

Let's talk

Book a quick call, walk us through your needs, and we'll put together a proposal.