VoIP vs Landline for Business: Which Lines to Keep in India
VoIP vs landline for Indian offices: how SIP trunks and copper lines compare on quality, reliability, capacity and cost drivers, and why…
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Tag: PRI
PBX Backup and Failover: Keep Your Phones Running in an Outage
Plan PBX backup and failover in four layers: scheduled configuration backups, UPS power, trunk failover across providers and hardware recovery.
What is a PRI Line? E1 PRI Explained for Indian Businesses
What a PRI line is, how an E1 PRI carries 30 calls, how it connects to an EPABX or IP PBX, PRI…
Least Cost Routing on a PBX: Cut Call Costs Across Operators
How least cost routing works on an IP PBX: outbound routes by dial pattern, ordered trunk sequences, overflow when a trunk is…
How Many SIP Channels Do I Need? Sizing a SIP Trunk with Erlang B
Work out how many SIP channels you need from busy hour calls and call length with Erlang B, with worked examples, bandwidth…
PRI to SIP Trunk Migration: A Step-by-Step Guide
How to move from PRI lines to SIP trunks without downtime: running both in parallel, routing numbers in stages, failover and common…
SIP Trunk in India: How It Works, Costs and How to Switch from PRI
What a SIP trunk is, how it compares with PRI and analog lines, which Indian operators offer it, rules to follow and…