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What changes when Hawaiʻi calling moves to IP?
Internet calling connects office and remote staff, but legacy lines need individual review. Inventory elevator, alarm, fax, and other specialist connections; ask the responsible equipment vendor what replacement service it supports rather than treating every line as an ordinary desk phone.
Technical reference: Microsoft: network planning · NIST: cybersecurity basics.
Sigma can coordinate the commercial comparison and provider questions. Your project plan should name the parties responsible for number transfer, network readiness, equipment compatibility, and acceptance testing at each location. How to Choose a Business Phone System offers a related planning checklist.
IP telephony, VoIP, and unified communications
VoIP describes the method used to carry voice across an internet protocol network. IP telephony covers the broader phone environment: numbers, routing, voicemail, handsets, applications, and administration. Unified communications may add messaging, meetings, presence, collaboration, and integrations.
These labels overlap in sales materials. Buyers should focus on required workflows and confirm what is included.
How hosted calling works
A hosted platform manages calling functions away from the customer location. Employees connect through desk phones, computers, browsers, or mobile applications. Administrators may manage users, call flows, locations, and activity online.
Potential benefits include centralized administration, mobility, easier user changes, consistent routing, analytics, and integration. Results depend on network quality, configuration, licenses, training, and support.
What to verify before migration
Document numbers, users, locations, analog devices, queues, emergency information, recordings, retention, integrations, and public listings. Assess internet, switches, cabling, Wi-Fi, firewall, and power.
Confirm number portability. Define responsibility for configuration, equipment, training, launch support, and multi-vendor troubleshooting. Use multifactor authentication, role-based administration, supported devices, and prompt offboarding.
Plan for internet and power loss. Mobile access, forwarding, backup internet, and battery protection can help only when configured and tested.
Frequently asked questions
Is IP telephony the same as VoIP?
VoIP is the transport method. IP telephony usually refers to the complete calling environment.
Can existing numbers be retained?
Often, but each number must be validated and supported by accurate account records.
Is cloud calling secure?
It can be secured, but risk depends on identity, devices, permissions, integrations, configuration, retention, and users.
Plan your next step
Ask Sigma Hawai‘i to assess your network, call flows, and porting requirements before migration.
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