August 07, 2006
VoIP Call Quality To Landlines Really Does Suck
I've increasingly been taking advantage of Skype's free calling to landlines within Canada and the US lately. To date, I've probably made calls to six or seven people at four different phone numbers. It appears that VoIP calls made to my Internet hosting provider's support line are of the worst quality. At least on their end.
With the exception of one call, I hear the person I'm calling (on a landline) clear and crisp. But last night, while trying to resolve some domain name issues, the hosting company rep repeatedly had to tell me that she was picking up only every other word I said. The conversation ended up taking twice as long as I'd hoped. For Skype calls to other people, though, the callee stated that they thought I sounded distant or maybe in some sort of booth. Quality wasn't great, they said, but it was passable.
On the other hand, a Skype-to-Skype VoIP call with someone half-way across the world was clear as a bell, with a single audio artefact - a slight buzz for a millisecond - and a slightly reduced volume. The other party literally sounded like he was in the same room as me, hence barely a noticeable delay. The person's voice, however, did drop in volume a few times. Which might have been what had happened with my voice when I called my hosting company.
This all contradicts what I said previously about call quality, supporting Brix Networks findings. I think there are a number of factors to consider when determining what kind of VoIP quality you'll experience. There are ways to improve call quality, but if one party is using a landline and the other a computer, quality may be poor.
My observation so far is that if you want to involve VoIP, pc2pc seems to have the best call quality, provided you have a broadband Internet connection. Phone2phone with a VoIP bridge usually does as well. (I tried with Jajah, which offers free calling between registered users. However, I only called myself, with a phone in each ear, so that's not a true indicator.)
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