Posts Tagged ‘packet loss’

QoS – Voice Quality is Job Number One – Part 1

May 5, 2009

It is a given fact that phone systems are a key component of how a business communicates with customers, vendors, friends and family. The quality of how those conversations sound is crucial to being effective. Anything other than crystal clear talk is just not acceptable. How can we measure that clarity and decide if our phone system meets our expectations?

Let’s separate the phone call into specific components which all together create the overall experience. First we have connectivity. The “dialtone” may be standard copper lines with the same technology that was used 100 years ago. These work very well and typically provide great service at a low cost (not counting taxes and extra fees). More modern types of connectivity include broadband (DSL, cable, T-1 for example) and allow much more capacity through single cables. Frequently broadband service piggybacks voice and data together so one bill pays your telephone and Internet service together.

The next component is the phone system hardware. If you use copper lines then you may simply have a Princess Phone (dating myself!) or other handset on the desk. Very simple, works well but features are totally dependent on the PBX. Your PBX may be hosted and controlled by the telco or it might be in your own office. In a hosted situation you likely have few features and they are the same as what was available 20 years ago. If you have a modern VOIP phone system in your own office then your phone hardware has many features. Some are visible on the handset, many more are software driven and are detailed in your manuals.

The last component is the software that drives the phone system. The most desirable features such as AutoAttendant (the menu system), FindMe-FollowMe, Voicemail to Email, and many others are added as necessary and modified for your business by your phone vendor. You do have someone you can talk to about your VOIP phone system features? Someone who will make the changes you need when you need them as your company grows?

The combination of these three factors presents what is called QoS or Quality of Service. The bar must be set very high in QoS in order for your calls to be crystal clear and effective. Phone companies measure QoS with technical metrics such as Latency (delay in packet delivery), Packet Loss (missing voice data), Network Jitter (voice data packets arriving out of order), etc. They monitor the many metrics available to see if you are receiving top quality or if improvements are required. Voice data can also be given priority over data traffic in a VOIP scenario to improve QoS.

At your own office, the local network also plays a huge role in what QoS you encounter. Whether you are using an old phone system with skinny cables or a VOIP phone system piggybacking along your data network fat cabling, it must be installed properly and maintained. There should be no kinks in the cables or tears in the insulation. The network equipment in the phone room must be “business quality”, not something designed for low traffic residential use. All too often a small business owner tries to save money on routers, switches and other network equipment not realizing that the QoS goes down because the equipment is not good enough for the task. Network bottlenecks can be eliminated via a thorough audit by a quality vendor.

Ask for your free phone system audit from Select Phone Solutions by calling 281-501-6464.

“Productivity Through Technology”