IP Phones & PBX Systems in Dubai & Sharjah
ZD Computer Trading LLC supplies, installs and supports business IP phones and PBX systems in Dubai and Sharjah. We help offices, clinics, schools, shops and other businesses set up reliable VoIP communication for internal extensions, incoming and outgoing calls, call routing and daily operations. Therefore, our team assesses the number of users, network readiness, required phone models and PBX configuration before recommending a suitable solution.
In addition, our services include IP phone supply, PBX installation and configuration, extension setup, SIP account and trunk coordination, auto-attendant, call queues, voicemail, call recording options, firmware updates and troubleshooting. We support new office installations and upgrades to existing telephone systems, subject to equipment compatibility, service-provider requirements and product availability. Moreover, our onsite support covers Dubai and Sharjah.
Key Features of IP Phones
- High-quality audio for clear conversations
- Call forwarding, waiting, and hold features
- Voicemail with email integration
- Auto-attendant and call routing options
- Support for remote work with internet-based extensions
Installation and Support
Our ongoing support includes:
- On-site and remote assistance
- Maintenance and troubleshooting
- Software and firmware updates
- System optimization and performance checks
Business IP Phones and PBX Solutions We offer
Therefore, we base system recommendations on business size, number of extensions, required call features, network readiness and planned growth. In addition, we can supply desktop, cordless, conference, video and multi-line IP phones, subject to model and stock availability. For example, compatible PBX features may include auto-attendant, call queues, ring groups, voicemail, call recording, office-hours routing and remote extensions.
Desktop IP phones for daily office use
Cordless and wireless models for mobility
Conference phones for meeting rooms
Video-enabled IP phones for remote collaboration
Multi-line systems for busy call environments
System recommendations are based on business size, number of extensions, required call features, network readiness and planned growth. Desktop, cordless, conference, video and multi-line IP phones can be supplied subject to model and stock availability. Compatible PBX features may include auto-attendant, call queues, ring groups, voicemail, call recording, office-hours routing and remote extensions.

IP Phones and PBX Setup Process
Our setup process begins with a review of the number of users, required extensions, existing telephone lines, internet connection and network readiness. Next, we identify the required call flow, including reception routing, departments, ring groups, office-hours settings, voicemail, call queues and recording options where compatible. After equipment selection, our team installs and configures the PBX and IP phones, assigns extensions, sets the call routes and tests internal, incoming and outgoing calls. Finally, cabling changes, network upgrades and telecom service-provider charges are assessed separately according to site conditions and approved requirements.
IP Phone and PBX Troubleshooting
Business phone problems may include one-way or no audio, registration failures, dropped calls, delayed ringing, extension-dialling faults, voicemail issues, incorrect time conditions, network instability or IP phones showing offline. First, our technicians check the IP phone, PBX status, local network, cabling, power, internet connection and relevant configuration to isolate the cause. Next, we can reconfigure extensions, call routes, ring groups and compatible devices, update firmware where appropriate, and test calls after troubleshooting. However, device condition, system compatibility, telecom service-provider settings and product availability determine whether repair or replacement is suitable.
Frequently Asked Questions About IP Phones and PBX Systems
What is the difference between an IP phone and a PBX system?
An IP phone is the device used to make and receive calls through an IP network. In contrast, a PBX is the central system that manages extensions, call routing, auto-attendant, queues, voicemail and other business-calling features. Therefore, IP phones connect to a compatible PBX or hosted VoIP service according to network conditions, required features and telecom service-provider configuration.
Can existing office numbers and network cabling be used with a new PBX?
In some cases, a telecom service provider may allow an existing office number to connect to a new PBX; however, this depends on the line type, SIP-trunk availability and PBX compatibility. In addition, we may reuse existing Cat5e or Cat6 network cabling after testing confirms the required network and power conditions. Therefore, we use an onsite assessment to determine whether the current lines, switches, cabling and network configuration need upgrading.
Do you provide IP phone and PBX installation in both Dubai and Sharjah?
Yes. We provide onsite IP phone and PBX installation, configuration, upgrades and troubleshooting for businesses in Dubai and Sharjah. However, service scheduling, cabling requirements, equipment selection and final costs depend on the site location, number of users, system design, product availability and telecom service-provider requirements. Finally, share your office details so our team can review the requirement.

