SERVICE

Migration & Modernization

Move the live system — hardware IPPBX, chan_sip, a locked suite or a stalled Asterisk — onto an architecture you can operate and extend.

Hardware → softwarechan_sip → PJSIPCloud cut-overEngine movesAdd AI voiceLegacy → SaaS

Someone searching migrate off hardware IPPBX or chan_sip to PJSIP is already in a buying situation. UnifiedPBX.in treats migration as architecture plus cut-over, not a weekend rewrite of the dialplan into a new GUI.

2026 buying brief

Who this is for

Operators stuck on a hardware box, chan_sip, a vendor-locked UCaaS or an Asterisk that nobody wants to touch.

What you get

Inventory, target architecture, dual-run plan and the first production test on the new path.

Searches this page answers

IPPBX to cloud, chan_sip migration, Asterisk to FreeSWITCH, add AI voice to existing PBX.

Typical moves

From what you have
LegacyHardware IPPBX · chan_sip · suite lock-in
Parallel runDIDs · phones · trunks · recordings
TargetSoftware PBX · PJSIP · cloud/VPC · APIs
Optional next planeAI voice · SaaS tenancy · WebRTC
Cut the number when the new path has answered the same calls the old path answered.

What we migrate

Hardware IPPBX → software / cloud

Keep numbers; retire the appliance.

chan_sip → PJSIP

The migration Asterisk already told you to do.

Engine moves

Asterisk ↔ FreeSWITCH when the product needs a different media story.

Existing PBX → AI voice

Model on the same trunk, PBX still owns transfer.

Legacy app → SaaS

Tenants, billing, RBAC around a voice plane that already works.

Locked UCaaS → owned core

Hybrid first if the bill is the problem, not the handsets.

FAQ

Questions buyers and AI search engines ask

Usually yes. DIDs, CLI and a lot of SIP phones survive if registration and codecs are planned. Proprietary digital phones on a hardware IPPBX often do not — we say that before the PO.

Depends on media concurrency, WebRTC and how much of the product is already ARI vs ESL. Engine pride is not a requirement.

Possible when the tree already has API leaves and a transfer. A model bolted onto a dead DTMF trap is a demo.

Only when the inventory is small. Parallel trunks, dual registration windows and a rollback number are the default.

Need this built?

Send the current architecture, call volume, carriers and the workflow you need to automate or productize. Discovery can start from a broken PBX or a blank product brief.

Discuss Your Project hello@unifiedpbx.in
Related
Migration solution →Asterisk / PJSIP →FreeSWITCH →Cloud PBX →

Architecture first. Then production.

A practical technical discussion focused on SIP, media, tenants, AI and the delivery path — not a generic sales deck.