ZyXEL DSLAM Technology Ensures Smooth Internal Communication in Buddhachinaraj Hospital Phitsanulok, Thailand

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“The old telephone system was outdated and was costly to upgrade. I needed an upgrade that uses the hospital budget efficiently. The VoIP solution from ZyXEL not only satisfied all our requirements, but also solved potential problems by handling all the additional phone lines"

Mr. Narong Oonlamai
IT Technician, Buddhachinaraj Hospital Phitsanulok


Buddhachinaraj Hospital Phitsanulok is a General Hospital and the Royal Hospital of the Ministry of Public Health. The hospital provides medical analyses and treats various diseases at the tertiary level. The hospital is also a part of the Health Promoting Hospital project and serves under the Ministry of Public Health as a medical education institution in co-operation with the faculty of Medicine at Naresuan University. Buddhachinaraj Hospital Phitsanulok leads the cooperation between the various departments and divisions to ensure swift internal communications via the telecom system.


Buddhachinaraj Hospital Phitsanulok required a PABX telephone system to ensure smooth internal communication among over 1,000 users. In preparation for increased workload, the hospital planned to install an additional telephone system capable of handling another 2,000 users. The project required a budget of more than THB 10 million for the PABX and remodeling of the existing system to cope with the new phone lines. 

Solutions and Benefits

After evaluation, the current PABX was found outdated and an upgrade would require a substantial amount of budget; therefore repairing the old system is not worthwhile. Due to the lack of budget, the hospital is considering using a VoIP system. The hospital’s internal communication system would need to run the new VoIP system in parallel with a PABX system to properly handle the workload. The parallel system should avoid delays and disruptions, and it should give the hospital personnel an opportunity to gradually learn the new system before making the complete switch. The hospital must choose a system that takes value, price, maintenance and compatibility with future technology into consideration. A total of three ZyXEL  MSAN  IES-6000M  (12.5U  Central  MSAN)  devices  and  42  48-port VOP1248G-61 VoIP line cards for the POTS subscriber interface have been adopted. These devices connected to the telephone system were divided into specific lines by department to handle multiple concurrent uses. 

After implementation of the VoIP system, the telephone cost has been reduced to a half of the current THB 100,000 per month—a 50% saving. This not only helps the public to save money but also devotes the additional funding to other communication projects to cope with the expansion of the ZyXEL VoIP system.

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