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: SIP trunk
PBX Dial Plan: How to Plan Extension Numbers and Outbound Routes
Design a PBX dial plan: extension length, number ranges per department and branch, outside line access, outbound routes, emergency numbers and codes.
VoIP Codecs Explained: G.711, G.729, G.722 and Opus
Which VoIP codec to use where: G.711 for trunks, G.722 HD voice in the office, G.729 for small links and Opus for…
DID Number in India: What It Is and How to Route It
What a DID number is, how Indian businesses get DIDs on SIP trunks and PRI lines, and how to route each one…
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…
What is SIP? SIP Protocol Explained for Business Phone Systems
What SIP is, how a SIP call works (REGISTER, INVITE, RTP), SIP vs VoIP, ports 5060 and 5061, SIP trunks vs extensions,…
How to Set Up a Call Centre in India: A Step-by-Step Guide
How to set up a call centre in India: define goals, size seats for peak hour, pick SIP or PRI lines, choose…
How AI Voice Agents Work: STT, LLM, TTS, Barge-in and Latency
How AI voice agents work, step by step: telephony gateway, speech to text, the language model and tools, text to speech, barge-in,…
Outbound Caller ID (CLI): Set the Right Number for Every Call
How outbound caller ID works on an IP PBX: trunk, route and extension caller IDs, DIDs per department, Indian CLI rules and…