If you’re looking for ways to cut costs and increase efficiency in the office, the phone system may warrant a look. Are you using an outdated legacy system that’s expensive and inefficient? Today, cloud-based phone systems are offering more affordable and effective solutions for many organizations.
These systems use Voice Over Wi-Fi (VoWi-Fi) or Voice Over Wireless LAN (VoWLAN) to transmit calls, negating the need for expensive telecom plans or non-agile systems that weren’t meant to scale with a business. Many organizations increase efficiency without sacrificing functionality via a VoWi-Fi transition.
Spectralink is a long-trusted brand in the enterprise telecom industry—you may already have their products in some part of the office. They are a leader in enterprise wireless phone hardware and systems.
The Wi-Fi 84-Series solution leverages a typical wireless LAN setup to deliver onsite voice mobility. It includes the 8440, 8441, and 8453 models. Here’s how to deploy VoWLAN with any Wi-Fi 83 Series solution from Spectralink:
Insufficient coverage can prevent a wireless phone system from performing to its fullest. If your coverage is lacking, you may notice problems such as:
Fortunately, these issues can be avoided. First, make sure that you have adequate coverage before launching a new system. It’s all too common for businesses to concentrate WLAN coverage in common work areas without considering that most wireless phone users walk while they talk, even at work.
A comprehensive network ensures that your employees won’t struggle to stay connected if they need to move around the building.
Roaming affects how well on-the-go phone users stay connected to a WLAN. It’s typical for businesses to provide little overlap between access points—but no overlap leads to dropped calls when you cross the threshold between APs.
You may avoid this by enabling both Wi-Fi bands on your access points (2.4 GHz and 5 GHz), which allows your device to seamlessly roam to maintain a connection even if their current band drops out, falls out of range, or becomes congested. The 2.4GHz band can also cover areas that are challenging for 5GHz, like stairways and elevators.
The right minimum signal strength for your device depends on the 802.11 band that it operates on. In a 2.4GHz band, you can achieve best practice data rates of up to 54 Mb/s (-47 dBm), while up to 65 Mb/s (-50 dBm) is possible on the 5 GHz band.
Set the lowest data rate to “required” or “mandatory” and the rest to “supported.” Beacons and multicast frames for push-to-talk use the lowest data rate, while unicast data frames use the highest.
Employ the Site Survey or Diagnostics mode in your Spectralink handset to validate the AP signal strength. Both can alert you to potential problems.
If you have trouble achieving the right strength, check for physical obstructions (like appliances or walls) and interference from other devices, which aren’t limited to Wi-Fi (Bluetooth devices are notorious for messing with wireless signals).
You can minimize retry rates and keep voice quality high by providing a full, bi-directional scope of access points using both antennas for maximum diversity. If you have device interference, you may not have an adequate footprint of APs to manage it.
Use extra access points to diversify around problem areas, like:
Configuring the access points is the last step, but it’s critical. The Spectralink handset supports IEEE 802.11b, 802.11n, 802.11a, and 802.11g types. You can configure for any of them within the setup menu using step-by-step guides available from the Spectralink website (or in the packaging for the system you purchased).
For all radio types, you should:
The project doesn’t end just because you’re done with implementation. 7SIGNAL can provide continuous monitoring and faster response through our proprietary Wireless Network Monitoring platform. Our solution:
We provide a free proof of concept that lets you see exactly what 7SIGNAL can do for your enterprise’s wireless network. Get personalized insight on how we can help you now by submitting a Proof of Concept Request.