Enterprise Voice Without the Enterprise Complexity

SIP Trunking for organizations connecting existing PBX or UCaaS platforms to the PSTN. Hosted PBX for organizations moving their phone system to the cloud. POTS Replacement for organizations transitioning from legacy analog lines before carrier sunset deadlines create forced migrations at a higher cost.

Yes, SIP Trunking integrates with Microsoft Teams, enabling PSTN calling directly within Teams environment without requiring a separate calling plan from Microsoft. We also support other leading UCaaS platforms.

Yes, our global telephony footprint includes local numbers, direct inward dialing (DID), and toll-free services worldwide. One provider in every country your business operates in.

Carriers across the US are actively sunsetting copper POTS infrastructure. The cost of maintaining legacy lines is rising significantly in the interim, often dramatically. Globalgig POTS Replacement provides a managed transition to LTE cellular or VoIP, typically at up to 70% lower cost than using legacy analog lines. The complexity around non-voice analog devices — fire panels, alarms, fax lines — is something we handle as part of our service. Speak to us before your carrier forces the conversation.

Yes, Globalgig is SOC 2 Type II certified. SIP Trunking includes a secure trunking option with TLS signaling and SRTP media encryption. STIR/SHAKEN caller authentication is supported, while POTS Replacement services are compliant with fire, E911, and life safety service codes.

Yes, existing numbers can be ported to Globalgig SIP Trunking for most markets. We manage the porting process and will confirm what is available in your specific locations before any commitment.

SIP Trunking carries voice calls over your existing internet or private network connection, replacing traditional TDM and ISDN circuits. With TDM, voice services require its own dedicated circuit separate from your data connectivity. SIP Trunking eliminates this by running voice services over your existing data connection, removing the need for a separate voice circuit. Instead of physical lines with fixed capacity, SIP trunks are virtual channels that scale with your call volume. You keep your existing PBX or phone system. The legacy circuits are replaced with a more flexible, lower-cost IP connection to the global telephone network.

Our voice services are delivered over your existing network — dedicated internet, MPLS VPN, or SD-WAN — instead of requiring separate, dedicated circuits for voice traffic. When voice and network services come from the same provider, quality issues have a single escalation path and a team that can see both layers.

Through direct routing, Globalgig SIP Trunking acts as the PSTN gateway for your Teams environment, enabling your users to make and receive external calls within Teams using your own numbers. This means you do not need to buy any Microsoft calling plans on top of your existing Teams licenses.

Per-trunk billing charges are based on the number of simultaneous call channels you have provisioned. Pooled billing draws from a shared pool across all your locations, which typically reduces waste, as sites with lower call volumes free up capacity for those with higher demand. We will recommend the right billing structure based on your call volumes.

Our secure trunking option adds TLS encryption for call signaling and SRTP encryption for call media, protecting calls from interception. We use STIR/SHAKEN caller authentication to help your business meet regulatory requirements and reduce spoofing risk.

Dedicated internet access, MPLS VPN, and Ethernet private networking are all supported. If you have Globalgig Managed SD-WAN, SIP Trunking integrates directly as part of your existing connectivity service, with voice traffic quality-of-service policies applied across your SD-WAN.

SIP Trunking connects your existing on-premises PBX or UCaaS platform to the public telephone network over IP. You keep your phone system; we replace the circuits underneath. Hosted PBX is the phone system itself, delivered from the cloud, so there is no on-premises PBX hardware. Both services are available from Globalgig. Many organizations use both: SIP Trunking at sites with existing PBX hardware, and Hosted PBX at sites moving fully to cloud telephony.

Yes, existing numbers can be ported to Hosted PBX in most markets. We manage the porting process and will confirm what is available in your locations before you commit.

Hosted PBX includes call continuity features that route calls to a mobile number or alternative destination if your primary connectivity is unavailable. For organizations with Globalgig Managed SD-WAN or wireless failover, the network layer also provides resilience that protects voice services alongside other traffic.

Through mobile and desktop applications that use the same contact number, regardless of location. Remote users connect to Hosted PBX through their internet connection, with the same features available as if they were in the office. Calls follow the person, not the desk.

Auto attendant is an automated call management system (IVR) that greets callers and redirects them to the right person or department without requiring a receptionist to answer and transfer calls. It reduces wait times, ensures calls reach the right person first time, and offers a professional experience to every caller, regardless of what your team is doing at that moment.

Yes, this is one of the most important aspects of POTS Replacement to get right. Fire alarm control panels have specific requirements — they need to maintain reliable connectivity for alarm signaling, and the replacement technology must comply with fire code and life safety standards. Our POTS Replacement service covers fire panels specifically, with compliant LTE or VoIP solutions that meet fire code requirements. We assess each device type as part of the pre-deployment process.

Up to 70% compared to continuing using legacy POTS lines, depending on your current carrier rates and the replacement technology used. LTE cellular and VoIP alternatives are significantly cheaper to operate than aging copper infrastructure, particularly as carrier maintenance costs are increasingly passed to customers still using POTS lines. We can provide a site-by-site cost comparison based on your current POTS estate before you commit.

POTS stands for Plain Old Telephone Service — the traditional copper wire telephone infrastructure that has been the foundation of landline communications for over a century. Carriers are decommissioning copper infrastructure as it is expensive to maintain and has been superseded by IP-based alternatives. The Federal Communications Commission (FCC) in the United States has approved carrier petitions to discontinue POTS in many areas, and similar transitions are underway internationally. If you have POTS lines, your carrier is either already raising costs significantly, or will do so in the future, and eventually will withdraw the service entirely.

Wired POTS replacement uses VoIP over your existing Ethernet network, or Globalgig wired connectivity, with an analog telephone adapter connecting your analog devices to the IP network. It is typically the most cost-effective option if wired connectivity is available. Wireless POTS replacement uses 4G LTE cellular connectivity, which is suitable for locations without wired connectivity, where wireless diversity is required for resilience, or when running new wired infrastructure is impractical.

It depends on the number of locations, the variety of analog devices in your estate, and the replacement technology being used. The pre-deployment device audit and coverage qualification are the most important steps, as getting those right determines how smoothly the deployment goes. We provide a clear timeline and project plan before deployment begins.