Global Multi-Carrier SIM Solution
Granite's Global Multi-Carrier SIM provides enterprise mobile connectivity across AT&T, Verizon, and T-Mobile on a single SIM — automatically connecting to the strongest available carrier. Managed through Granite's consolidated billing and device management platform with unified reporting across all SIM deployments.
Free Advisory
Fibi sources Granite Telecommunications Global Multi-Carrier SIM Solution at no cost to you. Our advisory is funded by the carrier.
Side-by-Side Comparison
We compare Granite Telecommunications against 300+ carriers so you know you're getting the best solution for your needs.
Post-Sale Support
Dedicated advisor for the life of your contract — Fibi escalates issues on your behalf so you're never dealing with carrier support alone.
About Global Multi-Carrier SIM Solution from Granite Telecommunications
- Granite's Global Multi-Carrier SIM provides enterprise mobile connectivity across AT&T, Verizon, and T-Mobile on a single SIM — automatically connecting to the strongest available carrier.
- Managed through Granite's consolidated billing and device management platform with unified reporting across all SIM deployments.
Fibi sources Global Multi-Carrier SIM Solution from Granite Telecommunications alongside 300+ providers — comparing pricing, SLAs, and contract terms so you always get the best deal, at no cost to you.
Frequently Asked Questions
Common questions about Global Multi-Carrier SIM Solution from Granite Telecommunications.
More from Granite Telecommunications
Related Services
POTS Replacement — Analog Line Elimination
Fully managed migration from legacy analog (POTS) lines to cellular or broadband replacements — covering fax machines, elevator phones, fire alarm panels, door access, and security systems. FCC-compliant, NFPA 72 / ASME A17.1B / UL 864 certifiable. Granite audits inventory, matches replacement technology to each application, manages migration timeline, and handles carrier disconnect orders at enterprise scale.
Business Internet — Broadband & Dedicated Fiber
Broadband and dedicated fiber internet across AT&T, Verizon, Lumen, Comcast, Cox, Spectrum, and 100+ regional carriers — quoted, ordered, and managed through a single Granite account. Single billing, first-line support, and provisioning management across all carrier circuits.
SD-WAN — Managed Software-Defined WAN
Carrier-agnostic managed SD-WAN layered on Granite's aggregated carrier network — application-aware routing, automatic failover, centralized policy management, and cloud optimization. GraniteView single-pane-of-glass management across all locations.
UCaaS — Hosted VoIP & Cloud PBX
Cloud-hosted unified communications replacing legacy PBX hardware at enterprise locations — delivered on Granite's carrier-grade network. Auto-attendants, call queues, conferencing, voicemail-to-email, Microsoft Teams integration, and centralized administration.