IP telephony for business: how it works
IP telephony carries voice over the data network instead of traditional phone lines. For a business, that means more features, more mobility and one network for everything.
The building blocks
- IP phone system (PBX): the brain that routes calls to extensions, queues and menus. It can be in the cloud or on a device in the office.
- Extensions: every phone, app or desk has its own internal number.
- Endpoints: desk phones, DECT cordless handsets, mobile apps (softphones) or computers.
- Connection to the outside world: the phone system connects to your operator's lines, usually through a SIP trunk.
SIP, the common language
SIP is the standard protocol used to set up IP calls. If a phone, a phone system or a video intercom is SIP-compatible, they can work together even from different manufacturers.
Advantages
- Welcome menus, queues, schedules and automatic diversions.
- Your office extension on your mobile, including when working remotely.
- Several sites joined up as one.
- Statistics: missed calls, waiting times, peak hours.
- Integration with video intercoms, paging and, where relevant, the CRM.
What you need
- A network that prioritises voice and PoE switches for the phones.
- A stable internet connection and, if critical, a backup.
- A UPS for the network and the phone system.
- A numbering plan and call flow designed around the business.
Frequently asked questions
Is the quality worse than a traditional line?
Not if the network is properly set up. With high-definition codecs, voice often sounds clearer. Quality problems almost always come from a network that doesn't prioritise voice.
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- Emailinfo@knxandorra.com