Maintenance & Annual Maintenance Contracts (AMC)
Delivered by HTZ engineers

PABX & IP Telephony · Hospitals
Connect reception, wards, emergency and pharmacy with dependable extensions, call routing and failover.
Architecture, buying guide, compatible products and the Package Builder all follow the solution you pick.
Keep working analog phones and lines, and add IP extensions where new cabling is available.
Best for Upgrading an existing analog system Keeping working phones and lines Phased move to IP
Sizes follow your site survey. The recommended setup below is already matched to this solution.
Every option below is compatible with this solution and comes from different brands and models. Choose one IP-PBX platform; the parts that must match its brand update automatically.
Reception, wards, emergency and pharmacy need reliable routing, and emergency lines sit on a UPS-backed path with a failover route.
This is the hybrid solution: an IP-PBX with IP phones where cabling exists, and an FXS gateway so working analog phones stay in service during the move to IP.
Typical size: 40–120 extensions with emergency routing.
What to check at each step. Tap a step to open it; products are chosen above in “Choose Your Devices”.
Buying guide
Count users, departments, outside lines and peak calls.
Details
How to choose
Rule of thumb
A useful rule for a hospital: outside lines ≈ 1 for every 4–6 staff, then add spare extensions for growth.
Buying guide
Count analog and IP extensions separately.
Details
How to choose
Rule of thumb
Count analog phones to keep and new IP phones separately, then pick a platform that covers both with spare.
Key specifications to compare
Right product when
Analog and IP capacity both cover today with spare.
Buying guide
Connect old phones and lines to the IP system.
Details
How to choose
Rule of thumb
FXS for phones, FXO for landlines: count each before choosing a gateway.
Key specifications to compare
Right product when
Port types and counts match the phones and lines you keep.
Buying guide
Reuse working analog phones and add IP phones where needed.
Details
How to choose
Rule of thumb
Upgrade reception and high-use desks to IP first; keep other analog phones until the next phase.
Key specifications to compare
Right product when
Each desk has a supported phone and a clear upgrade path.
Buying guide
Give voice its own VLAN, QoS and enough PoE.
Details
How to choose
Worked illustration
Illustration: 24 phones × 5 W = 120 W, so choose a 24-port PoE switch with more than 120 W budget.
Key specifications to compare
Right product when
Total PoE budget and ports cover every phone with headroom, with voice on its own VLAN.
Buying guide
Re-test old phone pairs and run Cat6 for new IP phones.
Details
How to choose
Rule of thumb
Run Cat6 for every new IP desk and keep the MDF labelled for remaining analog phones.
Key specifications to compare
Right product when
Old and new cabling are tested and labelled.
Buying guide
Confirm each feature and its license on your PBX model.
Details
How to choose
Rule of thumb
List the features you need, then confirm each one is supported (and licensed) on the PBX model you choose.
Key specifications to compare
Right product when
Every required feature is supported and licensed on the chosen model.
Buying guide
Keep the PBX, switch and gateway running in a power cut.
Details
How to choose
Rule of thumb
Put the PBX, PoE switch and gateway on a UPS so reception can still take calls during load-shedding.
Key specifications to compare
Right product when
Runtime covers the PBX, switch and gateway for your typical outage.
Buying guide
Plan programming, testing and a support plan.
Details
How to choose
Rule of thumb
Handover should include the extension list, IVR flow and a test of every outside line.
Key specifications to compare
Right product when
Scope covers survey, programming, testing and a clear support SLA.
IP phone / extension setup ৳ 500 / extension · Equipment setup & commissioning ৳ 1,000 / device. Add products to the Package Builder and it prices the installation for you.
Compatible products · Services
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Buying guide
Verify warranty, support and spare handsets.
Details
How to choose
Rule of thumb
Ask for warranty length, support hours and spare availability in writing.
Custom projects are quoted after consultation.