Field notes

ISP operations & XIMS engineering

Practical writing for ISP operators — GPON deployment, MikroTik integration, billing automation, OSS/BSS migration, and what we're learning building XIMS.

2026-05-15

GPON deployment checklist for Indian ISPs in 2026

A pragmatic 14-step checklist for ISPs rolling out GPON FTTH in India — from PoP design to ONU provisioning, with the field realities most vendor brochures skip.

gpon, deployment, india, ftth

2026-04-22

Thinking of migrating ISP billing software? Read this first.

What actually goes into a billing platform migration — the parts vendors don't write about. From data extraction to cutover to the inevitable invoice reconciliation week.

migration, oss-bss, billing