[Asterisk-biz] Other New VOIP Products from D-Link

[Hermann Wecke]

Jon Carnes wrote:
> I've looked at the DI-102 before, but it doesn't appear to do any
> bandwidth shaping, only prioritizing. What happens when you fill the
> outbound Bandwidth by sending out a large email? Does it keep the Voice
> traffic flowing while throttling the email?

I'm not 100% sure but most of the devices I tested only "shapped" the 
upload traffic, as the download "should" be shapped by the ISP (in other 
words: QoS on the download side is an ISP policy, therefore, you 
shouldn't mess with it). One I can say is the Sipura SPA-2100, QoS only 
available for the upload, not download.

I bought a DI-102 and made some tests last weekend. I started a large 
.iso download and placed some calls. Without DI-102 it was impossible to 
place or receive a call, as 100% of the bandwidth was being used for the 
download. With the device plugged, it was BETTER, but still some 
"cracks". Improved 70~80% over a long conversation (time is required to 
establish QoS I believe). The download was trimmed to 20kbps (over a 
256/128 ADSL), and soon after the call ended returned to 25~26kbps.

> We've been fairly happy with the Linksys WRT54G-S

Following your tip I will test it... But I'm really happy with the DI-102.