Session Border Controllers (SBC) in Dubai & the UAE

A Session Border Controller (SBC) is a network device — physical or virtual — that sits at the border between two VoIP networks and controls how SIP calls and media cross that boundary. It secures, normalises and routes voice traffic between your phone system and the outside world. NetOn Technologies designs, supplies, configures and supports certified SBCs across the UAE — for SIP trunk security, Microsoft Teams Direct Routing and connecting different PBX platforms together.

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What is a Session Border Controller?

A Session Border Controller is a dedicated device that governs SIP (Session Initiation Protocol) sessions at the edge of a network. It performs four core jobs: security (it hides your internal network and blocks SIP-based attacks), interoperability (it translates between SIP dialects so incompatible systems can talk), media handling (it transcodes audio codecs and manages NAT traversal), and routing (it directs calls and enforces policies such as call admission control). In short, an SBC is the firewall, translator and traffic controller for voice over IP.

Why UAE businesses need an SBC

• SIP trunk security: Exposing a PBX directly to an Etisalat (e&) or du SIP trunk risks toll fraud, denial-of-service and eavesdropping. An SBC shields the PBX and blocks malicious SIP traffic.
• Microsoft Teams Direct Routing: Microsoft requires a certified SBC to connect Teams to a UAE SIP trunk — there is no Direct Routing without one. See our Teams Direct Routing UAE guide.
• System interoperability: An SBC lets a legacy PBX, a new IP-PBX, a SIP trunk and Microsoft Teams all interoperate despite using different SIP flavours.
• Toll-fraud protection: Call admission control and rate limiting cap your exposure if credentials are ever compromised.

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SBC platforms NetOn Technologies deploys in the UAE

SBC Platform	Type	Best for
anynode (TE-SYSTEMS)	Software SBC	Microsoft Teams Direct Routing, flexible virtual deployments — see our anynode guide
AudioCodes	Hardware & virtual	Teams-certified Mediant SBCs, enterprise SIP trunking
Ribbon (SBC SWe/EdgeMarc)	Hardware & virtual	Carrier-grade and large enterprise deployments
Oracle (Acme Packet)	Hardware & virtual	Service-provider and high-capacity environments
Wildix / Sangoma	Built-in SBC layer	UC&C deployments where the PBX provides SBC functions

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Hardware SBC vs Software (virtual) SBC

A hardware SBC is a purpose-built appliance — robust, with predictable capacity, ideal where physical separation and high call volumes are required. A software (virtual) SBC such as anynode runs on a standard server or virtual machine, scales by licence, and suits cloud, hybrid and Microsoft Teams deployments. NetOn Technologies recommends the right model based on your call volume, security posture and whether you are deploying on-premises, in the cloud or in a hybrid model.

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SBC deployment service from NetOn Technologies

1. Assessment: We review your PBX, SIP trunks (Etisalat e& / du), Microsoft Teams estate and security requirements.
2. Design & sizing: We select the SBC platform and licence tier for your concurrent-call volume and redundancy needs (including HA pairs).
3. Configuration: SIP normalisation, codec transcoding, security policies, call routing and Teams Direct Routing setup.
4. Testing & go-live: Inbound/outbound call testing, failover validation and number porting confirmation.
5. Support: Ongoing monitoring, firmware updates and managed support across the UAE.

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Frequently Asked Questions: SBC in the UAE

What does a Session Border Controller do?

An SBC secures, translates and routes SIP voice traffic at the edge of a network. It protects the PBX from SIP attacks and toll fraud, translates between incompatible SIP implementations, transcodes audio codecs, handles NAT traversal, and enforces call routing and admission-control policies.

Do I need an SBC for Microsoft Teams Direct Routing in the UAE?

Yes. Microsoft requires a certified SBC to connect Teams to a UAE SIP trunk via Direct Routing. NetOn Technologies deploys certified SBCs — including the anynode software SBC and AudioCodes — to enable Teams calling on Etisalat (e&) or du trunks.

What is the difference between an SBC and a firewall?

A standard firewall inspects general data traffic but does not understand SIP or RTP voice protocols. An SBC is purpose-built for real-time communications: it understands SIP signalling and media, prevents voice-specific attacks and toll fraud, and ensures call quality — things a data firewall cannot do.

Can an SBC be virtual?

Yes. Software SBCs such as anynode (TE-SYSTEMS) run on a virtual machine or standard server and scale by licence. Virtual SBCs are ideal for cloud, hybrid and Microsoft Teams Direct Routing deployments. NetOn Technologies deploys both hardware and virtual SBCs in the UAE.

Which SBC brands does NetOn Technologies supply in Dubai?

NetOn Technologies supplies and supports anynode (TE-SYSTEMS), AudioCodes, Ribbon and Oracle SBCs, as well as the built-in SBC layer in Wildix and Sangoma systems — selecting the platform that fits each client's call volume, budget and architecture.