Now live · Free Telecom Solution Hub

The first free telecom solution hub. Built for {{ wordEl }}.

CSL is the Communication Solution Building Platform. Find free IP telephony hosting, compare systems for banks and defense, browse 1,000s of implementation design patterns, and hire CSL-certified telecom engineers.

1,284

IP implementation patterns

৳0

IP telephony hosting, up to 50 seats

640+

CSL-certified engineers

6

Industries mapped
01 · Solution patterns

Start from a pattern built for your industry.

Pick your industry and use case. Every pattern is a reviewed reference design with the components, topology and deployment record behind it.

Use case
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No patterns match. Try another use case or clear the search.
02 · Compare systems

Compare IP telephony systems side by side.

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03 · Pricing & project plan

Price it and plan it before you call anyone.

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Project plan

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Timeline scales with plan and site count. A CSL engineer confirms it at kickoff.

04 · Actionboard community

Find CSL-certified telecom engineers.

The Telecom Solution Building Actionboard connects companies with engineers certified on CSL patterns. Post a project, or invite an engineer straight from a pattern.

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05 · Global solution delivery partners

Global platforms, packaged and priced for Bangladesh.

CSL delivers joint solutions with CloudCockpit Inc. (USA), NetApp, Snowflake, AWS, NEC (Japan) and KAREL (Turkey). Local deployment, local support and pricing in taka.

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Joint solution packages

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Prices in BDT, excluding VAT. Cloud consumption billed in taka through CSL.

Request a solution demo

A CSL solution architect and the relevant global partner will run the demo with your team.

Demo only — nothing was sent.

This is a demonstration: your {{ demoPkg }} demo request was not submitted and nobody will contact you.

Build your communication solution on CSL.

Free hosting to start. Patterns, pricing and certified engineers when you scale.