VoIP · Abu Dhabi
Emirtech Technology configures, secures and manages SIP trunk connections for Abu Dhabi businesses running 3CX, Yeastar, Cisco, Avaya or Grandstream PABX systems — cutting call costs and consolidating voice services onto your existing IP infrastructure.
A SIP trunk replaces traditional PSTN or ISDN telephone lines by carrying voice calls over your IP network to a UAE-licensed SIP provider, allowing your existing IP-PABX or Microsoft Teams environment to make and receive calls without dedicated physical phone lines. For Abu Dhabi organisations — including Mussafah industrial operators, ADGM and Al Maryah financial firms, Khalifa City corporate offices, Yas Island hospitality groups, Saadiyat cultural institutions, Masdar technology companies and KIZAD logistics operators — SIP trunking typically reduces monthly call expenditure while adding resilience through multiple simultaneous channels on a single broadband or MPLS connection. Emirtech Technology, a systems integrator (ADMCC-approved for security systems) based at M44 Mussafah and operating in Abu Dhabi since 2018, configures, deploys and manages SIP trunk integrations for a range of IP-PABX platforms including 3CX, Yeastar, Cisco, Avaya and Grandstream, as well as Microsoft Teams Direct Routing configurations. Our team handles carrier selection and registration, dial-plan construction, codec and quality-of-service settings, Session Border Controller deployment for security, and number porting from legacy lines where required. Post-integration, Emirtech provides monitoring and annual maintenance support to keep your SIP trunk configuration aligned with carrier changes, firmware updates and evolving call-routing requirements.
In short: Emirtech configures, secures and manages SIP trunk connections for Abu Dhabi businesses running 3CX, Yeastar, Cisco, Avaya or Grandstream PABX systems. Lines and numbers come from UAE-licensed carriers (du or e&); Emirtech is not a telecom licensee and does not sell calls or SIP minutes.
| What a SIP trunk is | A business phone line delivered over the network to an IP-PBX or Microsoft Teams, replacing physical ISDN or analogue lines. |
|---|---|
| Who supplies the trunk | The licensed UAE operators, du and e&. The contract and the numbers are yours with the operator. Emirtech is not a telecom licensee, does not sell calls or SIP minutes, and is not an authorised dealer of any carrier. |
| PBX | du states that it does not supply a PBX; you bring your own. Emirtech selects and installs it, or configures your existing Yeastar, 3CX, Cisco or Avaya system. |
| What Emirtech does | Specifies what to ask the operator for, configures the trunk on the PBX, coordinates number porting, tests calls and hands over documentation. |
| Where | Abu Dhabi and Al Ain first, installed by Emirtech's own engineers from Mussafah. Dubai work covers smart home, PABX and IP-PBX phone systems, IT AMC and time attendance by scheduled on-site visits, gate barriers, ANPR, video intercoms and turnstiles by Emirtech itself, and CCTV, alarm and access control through SIRA-approved partners, with Emirtech coordinating. |
| Price | Operator plans, channel counts and prices change, so confirm them with du or e&. Emirtech gives a free site survey, then a written quotation for its own work, and replies to enquiries the same working day. |
| Last reviewed | 4 November 2026 |
Integration Scope
Emirtech registers and configures SIP trunks on 3CX, Yeastar S-Series and P-Series, Cisco Unified Communications Manager, Avaya IP Office and Grandstream UCM platforms — building dial plans, outbound call routes and inbound DID mapping to match each organisation's Abu Dhabi calling requirements.
For businesses already running Microsoft 365, Emirtech deploys and configures a certified Session Border Controller to connect a UAE SIP trunk directly to Microsoft Teams — enabling users across Masdar tech firms and ADGM offices to make and receive PSTN calls without a separate phone system.
SIP infrastructure is a frequent target for toll fraud and unauthorised call injection. Emirtech deploys Session Border Controllers, configures IP access-control lists, enables TLS/SRTP encryption and tunes QoS policies on your network switch layer to protect call quality and prevent fraudulent usage across Abu Dhabi deployments.
Emirtech manages every stage of a SIP trunking project: from assessing your current PABX platform, bandwidth and network quality through to recommending a UAE-licensed SIP carrier, coordinating the trunk order with the operator, configuring your IP-PABX system and running end-to-end call tests before go-live. Where a Session Border Controller is required for Microsoft Teams Direct Routing or for additional security hardening, we supply and integrate supported SBC appliances or virtual SBC instances on your server or VPS infrastructure. Our SIP trunking work is backed by a local Abu Dhabi team that understands UAE carrier requirements, e& and du interconnect configurations and the calling patterns typical of each sector. To arrange a no-obligation assessment of your current telephony costs and configuration, visit our request a quotation page or call +971 55 651 7843.
Many Abu Dhabi businesses still run ISDN BRI or PRI lines that were installed with their original PABX hardware. SIP trunking offers a network-based alternative worth evaluating as ISDN infrastructure ages. The table below outlines the key practical differences.
| Criterion | Traditional ISDN / PSTN Lines | SIP Trunking over IP |
|---|---|---|
| Physical infrastructure | Dedicated copper circuits per channel | Uses existing broadband or MPLS connection |
| Scalability | Fixed channels; hardware change required to add lines | Channels added by carrier configuration change |
| Call cost structure | Per-minute tariffs on fixed circuits | Typically lower per-minute rates; unused channels not wasted |
| Redundancy | Single carrier circuit; outage stops all calls | Multiple SIP providers or failover routing configurable |
| Microsoft Teams compatibility | Not directly compatible; gateway required | Native with Direct Routing & SBC |
| Security considerations | Physical circuit; limited remote attack surface | Requires SBC, TLS/SRTP & ACL hardening |
Emirtech carries out a free pre-migration assessment to compare your current circuit costs against SIP trunk pricing and to identify any network readiness work needed before cutover.
SIP trunking benefits any Abu Dhabi organisation running an IP-PABX or Microsoft Teams that currently relies on ISDN lines or costly hosted telephony contracts. Emirtech can scope SIP trunking for sectors such as the following:
Answers
Related Pages
The main telephony hub — the PBX platform your SIP trunk connects to.
A widely used platform for SIP trunks, with native Microsoft Teams integration.
Appliance-based IP-PBX with no per-user licence — a common SIP trunk destination alongside 3CX.
Teams Phone with Direct Routing relies on a properly sized and configured SIP trunk.
Get a free consultation and a no-obligation quotation from Abu Dhabi's technology specialists.
Related guide: PABX and IP-PBX systems in Dubai
Talk to Emirtech's engineers — we reply the same working day across Abu Dhabi and Al Ain. CCTV, security, IT, AV and smart-building solutions.
Mon–Sat 8AM–7PM · [email protected] · Since 2018 · ADMCC-approved for security systems