Sajjidur Technical Services

Grandstream & Avaya PBX Experts

PBX & IP PBX Installation, Repair & AMC – Dubai & UAE

Professional Grandstream UCM and Avaya IP Office solutions for villas, offices, clinics, shops and buildings. We design, install, program and maintain complete telephone systems with SIP trunks, IP phones and call center features.

✅ Grandstream UCM6200 / UCM6300 / UCM6500 ✅ Avaya IP Office 500 & Analog Systems ✅ SIP Trunks (Du / Etisalat) ✅ Same-day On-site Support

Call 050 498 8909 WhatsApp PBX Support

Complete PBX & Low-Current Solutions in UAE

One team to handle your PBX, IP phones, LAN, CCTV, intercom and access control – so your office communication runs smoothly.

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PBX & IP PBX

Grandstream & Avaya PBX sales, installation, programming, repair & AMC.

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SIP Trunk & Lines

Du / Etisalat SIP, PRI & analog line integration with call routing & failover.

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IP & Digital Phones

Yealink, Grandstream, Avaya, Cisco, Fanvil – full extension setup & labeling.

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LAN & POE Network

Switches, VLAN, POE, cabling & rack dressing for stable voice network.

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Call Center Setup

IVR, queues, ring groups, reporting & wallboard-style monitoring.

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AMC & Emergency

Annual maintenance & same-day emergency breakdown support across UAE.

PBX & Telephone Systems

Grandstream PBX & Avaya PBX – Sales, Installation, Repair & Maintenance (UAE)

Professional PBX/telephone system support for villas, offices, shops, clinics & buildings across UAE.

📞 Grandstream PBX Systems (UCM Series)

Sales • Installation • Configuration • Repair • Troubleshooting • Annual Maintenance

Grandstream PBX (UCM6200, UCM6300, UCM6500 series) is one of the most popular IP-PBX solutions in UAE for small to medium offices. It gives you full VoIP communication with easy management and high reliability.

✅ Why Grandstream PBX Is Popular

Stable and affordable VoIP PBX (budget-friendly)
Supports IP phones, analog phones, extensions, IVR, call recording
Mobile app support (Grandstream Wave / GS Wave)
Integrated SIP trunk, GSM gateway, call forwarding, queues & voicemail
Compatible with major IP phones (Yealink, Cisco, Fanvil, Grandstream GXP)

🔧 Our Grandstream Services

UCM PBX full installation & setup (IVR, extensions, groups)
SIP trunk configuration (Du / Etisalat)
GXP/Yealink IP phone setup for all staff
Call flow designing: IVR → Queue → Ring Group → Voicemail
Remote app setup on staff mobile phones
LAN network fixing & POE switch support
Firmware upgrade, backup & restore
Fault finding – PBX not powering, SIP registration failed
Office relocation PBX shifting & rewiring

⭐ Common Grandstream Problems We Fix

No incoming/outgoing calls
SIP extension not registering
Echo / no audio / one-way audio
PBX restarting or hanging
IP phones not receiving calls
IVR or ring groups not working
Network switch / VLAN issues affecting calls

📞 Avaya PBX Systems (IP Office & Analog)

Sales • Installation • Programming • Repair • AMC Support UAE

Avaya is one of the strongest and most reliable PBX solutions for companies that need advanced call center features and high-quality communication.

🔍 Popular Avaya Models We Support

Avaya IP Office 500 V1 / V2
Avaya Communication Manager (CM)
Avaya Partner / Definity systems
Avaya desk phones – 1400, 1600, 9600 series

⭐ Why Companies Choose Avaya

Very stable in medium & large office setups
Excellent call center features – call queue, reporting, agent login/logout
HD voice quality
Hybrid support: IP phones + analog phones
Secure and reliable architecture

🔧 Our Avaya Services

Complete PBX installation & programming
New extension creation / user setup
Voicemail, auto-attendant & IVR programming
Call center setup with reporting & monitoring
PRI trunk + SIP trunk setup (Du / Etisalat)
Upgrading IP Office firmware
Changing office layout + rewiring
Analog line to IP migration
Full AMC maintenance contracts
Emergency breakdown repair (same day where possible)

⭐ Common Avaya Problems We Fix

Avaya IP phone not registering
No dial tone / busy tone / dropped calls
PBX shows “LAN/WAN Down”
Avaya IP Office not booting
Licensing error or feature not available
Call center queue not working
Voicemail not recording or not playing

🛠 Why Choose Us for PBX & Telephony Services?

15+ years experience in UAE telecom systems
Technicians experienced with Grandstream, Avaya, Panasonic, Yealink, Fanvil, Cisco & more
Same-day on-site support in Dubai, Sharjah, Ajman (and fast support across UAE)
Affordable service charges & genuine spare parts
Clean installation with proper labeling, cabling & programming
24/7 support for emergency breakdowns (subject to availability)
AMC contracts available for continuous maintenance and priority support

📍 Service Coverage Across UAE

Dubai • Sharjah • Ajman • Abu Dhabi • Ras Al Khaimah • Umm Al Quwain • Fujairah • Al Ain

Our PBX Workflow

How We Deliver Reliable PBX Systems

From site visit to final testing, we follow a clear process so your communication does not stop.

1. Site Visit & Assessment

We check existing cabling, network, number of extensions and provider lines (Du/Etisalat).

2. Design & Programming

We prepare call flows, IVR, queues, ring groups and extension plan as per your business.

3. Installation, Testing & Training

PBX, phones and SIP trunks are installed, fully tested and basic user training is given on site.

Our Expert Services

We provide comprehensive PBX & low-current technical solutions for businesses and homes across UAE.

Grandstream PBX Solutions

UCM series design, installation, programming, SIP trunk and remote extension setup.

Avaya PBX & Call Center

IP Office, CM, call center features, reporting and maintenance for busy offices.

IP Phones, LAN & Cabling

Structured cabling, POE switches, VLAN, patch panels and rack mounting.

Trusted by Businesses Across UAE

We support communication systems for offices, clinics, cafés, schools and residential buildings.

🏢 Corporate Offices 🏥 Clinics & Hospitals ☕ Cafés & Restaurants 🏪 Retail & Showrooms 🏘️ Residential Buildings 🏫 Schools & Universities

PBX FAQ

Frequently Asked Questions

Some common questions we receive about our PBX & IP PBX services in UAE.

Do you support both Grandstream and Avaya PBX systems in UAE? +

Yes, we specialize in Grandstream UCM series and Avaya IP Office and analog systems. We handle sales, installation, programming, repair and AMC contracts across UAE.

Can you integrate PBX with SIP trunk from Du or Etisalat? +

We configure SIP trunks from Du and Etisalat, including registration, authentication, routing, caller ID and failover. We also support PRI and analog lines alongside SIP trunks.

Do you provide same-day PBX repair in Dubai? +

For most PBX issues in Dubai, Sharjah and Ajman we provide same-day on-site visit, subject to schedule. For critical breakdowns we prioritize emergency calls and restore service as quickly as possible.

Can you set up call center features like IVR, queues and reporting? +

Yes, we design full call flows with IVR, ring groups, queues, voicemail and reporting for Grandstream and Avaya systems, including agent login and wallboard-style monitoring where supported.

Need PBX Installation or Emergency Repair?

Call or WhatsApp our PBX technicians now for Grandstream and Avaya support anywhere in Dubai, Sharjah, Ajman and across UAE.

📞 Call 050 498 8909 📞 Call 055 822 2354 💬 WhatsApp Us

Sajjidur Technical Services – since 2007 providing signage, CCTV, intercom, access control and PBX solutions across UAE.