Steps to try

  1. WhatsApp calls are sensitive to jitter; test on Wi-Fi to compare.
  2. Try a different Openline partner network manually.
  3. If it happens across networks, share a network diagnostics screenshot with support.

Still stuck?

Reach Openline support 24/7 through any of these channels:

When you write in, include your purchase code (the OL-… code we emailed you) and, if the eSIM is already installed, its ICCID (Settings → Cellular → tap the Openline line). That's enough for us to find your plan and diagnose without back-and-forth.