IP Phones, IP-PBX & VoIP Solutions in Bangladesh — Yealink, Grandstream, FreePBX

CSL Systems supplies Bangladesh’s enterprise VoIP backbone — IP phones, IP-PBX systems, SIP trunk gateways, FXO/FXS converters, and call center headsets from Yealink, Grandstream, Fanvil, Snom, Sangoma, and FreePBX (Asterisk). We deploy systems sized from a 5-extension dental clinic in Dhanmondi to 500-seat contact centers in Tejgaon and Banani with predictive dialer, IVR, call recording, and CRM integration.

IP phones stocked in Dhaka:

Yealink — T31P, T33G, T43U, T46U, T54W, T57W, and the executive T58W with HD touchscreen. Color-screen, multi-line, Gigabit, PoE, EHS-compatible for wireless headsets. ৳7,500–৳45,000. Yealink is the market leader for good reason — call quality, build reliability, and seamless interoperability with every major IP-PBX.

Grandstream — GRP2601, GRP2612, GRP2614, GRP2616, and the executive GRP2670. Excellent value tier, strong feature parity with Yealink. ৳5,500–৳28,000.

Fanvil — X3SP, X4U, X6U entry and mid-tier business phones, plus the X305 and X210 executive phones. Strong price-performance for budget-conscious deployments. ৳4,500–৳22,000.

Conference phones — Yealink CP925, CP965, Polycom Trio 8500, Grandstream GAC2500. ৳35,000–৳125,000 for boardroom-grade audio.

IP-PBX systems stocked:

Grandstream UCM6300 / UCM6308 / UCM6308A — IP-PBX appliances supporting 200–3000 extensions and 30–150 concurrent calls. ৳95,000–৳450,000. Built-in IVR, voicemail, call recording, video conferencing, and SIP trunking. Our most-deployed enterprise PBX in Bangladesh.

Sangoma FreePBX appliances — PBXact 60/100/300/2000 series. ৳145,000–৳850,000. The open-source FreePBX foundation with commercial support, advanced contact center features, and call detail record analytics.

FreePBX on bare-metal or VM — we install FreePBX on dedicated mini-PC or virtual machines for clients who prefer software-only deployments.

Yeastar P-Series, S-Series — strong alternative with cleaner web UI. ৳75,000–৳325,000.

Gateways and adapters:

Grandstream HT801, HT812 — analog telephone adapters (ATA) for converting old analog handsets to SIP. ৳3,500–৳7,500.

Grandstream GXW42xx FXS gateways and GXW410x FXO gateways for bridging analog PSTN lines into your IP-PBX. ৳22,000–৳95,000.

Use cases we deploy in Bangladesh:

Corporate offices — 20–200 extensions with IVR (“Press 1 for Sales, 2 for Support”), department call groups, voicemail-to-email, mobile softphone, call recording for compliance.

Call centers and BPOs — predictive dialer integration with VICIdial or Asterisk-based dialers, real-time supervisor monitoring, whisper/barge, queue analytics, CRM screen-pop integration with HubSpot, Zoho, and custom CRMs.

Hospitals and clinics — extension per consultation room, IVR triage, appointment reminder auto-calls, call recording for medical-legal compliance.

Hotels — room phones tied to PMS (property management system), wake-up call automation, in-room dialing restrictions, mini-bar billing integration.

Multi-branch businesses — SIP trunk between head office and branches eliminating inter-branch call costs, unified extension numbering plan across Dhaka, Chattogram, and Sylhet offices.

Remote and hybrid teams — softphones on mobile and laptop, secure SIP over VPN or TLS, employee extension follows them home.

SIP trunking in Bangladesh: We work with BTCL, Link3, AmberIT, Race Online, and other local SIP trunk providers to terminate inbound and outbound calls cost-effectively. International calling rates via SIP are typically 60–85% cheaper than mobile operator rates, which pays for the PBX hardware within 12–18 months for any business with regular international communication.

Why CSL Systems for IP-PBX in Bangladesh: PBX deployments fail when the integrator does not understand both networking (QoS, VLANs, jitter, packet loss) and telephony (dial plans, SIP trunking, call routing, IVR scripting). Our team has both — Mikrotik/Cisco CCNA-level networking plus FreePBX and Asterisk certified telephony engineers. We do not just sell the box; we design the dial plan, write the IVR scripts, configure SIP trunks with your operator, train the receptionist, and remain on annual support contract.

Call 01972277100 for IP-PBX project consultation, IP phone bulk quotations, and SIP trunk advisory services in Bangladesh.

Frequently Asked Questions

How much does an IP-PBX system cost for a 50-employee office in Bangladesh?
A 50-extension Grandstream UCM6304 IP-PBX with 50× Yealink T31P entry IP phones, basic IVR, voicemail, call recording, and 30-day on-site support from CSL Systems runs ৳450,000–৳625,000 installed. Upgrading to mid-tier Yealink T43U phones brings the total to ৳750,000–৳950,000. SIP trunk monthly costs from BTCL/Link3 are separate at ৳3,500–৳15,000/month.

Can I keep my existing landline number when switching to IP-PBX in Bangladesh?
Yes. Your existing BTCL or PSTN landline number can be ported to a SIP trunk provider (Link3, AmberIT, Race Online, Aamra) and routed into your IP-PBX, or kept on analog lines using an FXO gateway (Grandstream GXW410x). CSL Systems handles the porting paperwork.

What is the difference between Yealink, Grandstream, and Fanvil IP phones?
Yealink is the global market leader with the best build quality, call audio, and broadest PBX interoperability — premium pricing (৳7,500–৳45,000). Grandstream is excellent value with strong feature parity (৳5,500–৳28,000). Fanvil is the budget tier (৳4,500–৳22,000). For most Bangladesh deployments CSL recommends Grandstream GRP2612/2614 as the price-performance sweet spot.

Do you support call center features like predictive dialer and CRM integration?
Yes. CSL Systems deploys FreePBX, Sangoma PBXact, and VICIdial-based call center solutions with predictive/progressive/preview dialing, queue management, real-time supervisor dashboards, call recording, and CRM screen-pop integration with HubSpot, Zoho, Salesforce, and custom CRMs. Typical 30-seat call center deployment starts at ৳850,000.
Planning a project? See our guide: IP Phone & IP-PBX Price List Bangladesh 2026.