IP Telephony (IP Phones) has completely taken the business marketplace by storm and is the only competitive, viable choice for dial tone service except for cellular phones.
VoIP providers have taken to cloud based delivery as well and Internet circuits into VoIP PBX systems in-house. Desktop telephones have been upgraded to Digital IP telephones that run on Ethernet LAN cabling for data and AC to DC wall adapter for power, or if PoE enabled, a single Ethernet LAN cable can provide both IP data and Power within a 328 foot or 100 meter distance.
IEEE 802.3 Ethernet LAN distance limits both data and PoE to this 328 feet or 100 meter range. Fortunately for installers, PoE Extenders remove this barrier and allow for both LAN data and PoE up to 3,500 feet or 1,067 meters – That is over half a mile!

Do you remember when the power went out at your house, and the phone still worked? That’s because the phone company sends very low voltage power over the telephone line. This power is separate from the electric company’s network, so even if the power goes out at your house the phone will still function.

The same DC power principal exists for business phone systems. PoE IP Phone Manufacturers of these systems provide internationally approved standards for sending low voltage power through Ethernet LAN ports. This PoE DC voltage allows for PoE IP Telephones to have features like LED back-lit displays, many more digital functions/features, and multi-tone ringing. In past cases, early telephone consoles with large displays or telephones with adjuncts like speakerphones used to require local AC power but now high powered PoE Extenders can deliver anywhere from 12V DC up to 90V DC to eliminate any AC power outlet requirement.

Enter the era of PoE IP Telephony (IP Phones). PoE IP Phones use your company’s Ethernet LAN data network for a digital privatized dial tone (SIP/VoIP). The same LAN cabling that connects your data equipment (servers, workstations, etc.) also connect your business IP Phones. In theory, IP Phone systems are just another application running on your data network.

The first IP Telephones that were released came with local AC to DC wall power adapters. Because businesses typically deploy more phones than data equipment, provisions for power outlets at each installation location had to be made. This was much more costly and proved to be more difficult than traditional installations which simply involved plugging the phone into the jack. Instead, each IP Telephone installation required a data jack and a power outlet. An early concern with devices like IP Telephones was power. Ethernet standards never included requirements for power on cabling. The switches in the network room, your workstation computer, and your company’s servers all have local power supplies that plug into an outlet.
To combat these issues, the international standards body IEEE (Institute of Electrical and Electronics Engineers) ratified several PoE standards. 802.3af 48V DC Power over Ethernet (PoE) and 802.3at 56V DC Power over Ethernet (PoE) with more standards in the works to allow for much higher power. This standardization allowed PoE manufacturers to produce devices with integrated PoE support. Manufacturers of endpoint devices like IP Telephones, wireless access points, and IP Cameras could now produce compatible devices as well.

As 802.3af and at standards for PoE became more accepted by manufacturers, all proprietary standards fell out of use in today’s marketplace. Today PoE IP PBX and PoE IP Phone manufacturers use this standard. This is great for the consumer because prices for this technology have dropped significantly. Entry level consumer PoE switches can be found between $350 and $600. Although most IP Telephones support both 802.3af PoE and local power supply options, it now makes sense to change your old switches to units supporting PoE. Consider this: Typical IP Telephone local power supplies cost between $19 and $29 each. If you multiply this by 24 phones, then you are well into the cost range of a new 24-port switch that supports PoE. For the cost-conscious business owner the answer is clear. You can now make the switch to PoE and save.

PoE IP Phone and PoE Extenders – a Match made in Heaven for customers and installers alike.
Clearly the best choice is to leverage low cost PoE Extenders from PoEx, Inc. to be able to install your PoE IP Telephones where you need to and not where you are limited to by AC Electrical outlets or false LAN distance barriers of PoE Injectors or PoE Midspans.

PoEx, Inc., represents Made in the USA high quality professional grade products that any business can rely on.
They supply Gigabit PoE (Power over Ethernet) Injectors with no PD issues and PoE Extenders that will allow for very long distance installations.
Most all products represented come with a 45-day money back guarantee and a 4-year product warranty with optional next business day advanced replacement insurance.

Here is a line of Professional Grade PoE Extenders that we stand behind.

Here is a line of Professional Grade PoE Switches that we stand behind.

PoE IP Phones – Leveraging PoE Extenders was last modified: August 7th, 2014 by PoE Extender
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