SOHO users like myself are unlikely to have high-end networking gear supporting their home office setups. My initial experience with VOIP over broadband involved using Vonage and a Linksys BEFSR-41 broadband router. At the time Vonage was the leading phone-over-broadband service and the BEFSR-41 was the leading SOHO router.
You hear an awful lot about “QoS, which stands for “Quality Of Service.” In point of fact it means different things to different people depending upon their perspective, telco or IP networking.
Here are a few fundamental considerations when planning a VOIP implementation using DSL.
- What is your actual available bandwidth inbound & outbound?
- How many simultaneous calls do you need to sustain?
- What voice codecs are you using? And so, how much total bandwidth do you require?
- Do you have managed QoS on your network?
- Can you also implement traffic shaping to reserve bandwidth for VOIP purposes? Especially outbound bandwidth as this is typically the most scarce.
Following up on the question I asked last week (Nov 9) about QoS/traffic shaping, specifically comparing a vlan vs IP range based strategy. My issue stems from the fact that I've added a number of new voip devices to my…