Call Quality Problem - Choppy Connection
waffles:
I am trying to set up an OBi110, which I recently bought. I followed the instructions on the OBItalk website to set it up. Overall, it seems to work. The other parties confirm that the call quality is very good. However, on my side the connection is always very choppy: very frequently cutting out and then being silent for several seconds. I have configured the OBi for GV (SP1) and Callcentric (SP2) and it happens with both accounts. It also does not matter whether I initiate the call or receive it. I already went through the usual reboots, etc.
Setup:
Roadrunner Cable modem, Linksys WRT54G with DD-WRT f/w. OBi110 directly connected to Linksys router.
OBi110 runs latest f/w. SP1 is configured for GV, SP2 for Callcentric, using the default profiles from the OBitalk configuration tool.
The OBi replaces a Linksys SPA-1001, which has been running in this setup successfully for a few years.
Any idea how to fix it?
TIA!
uRwhatUr:
Quote from: waffles on April 16, 2011, 02:04:11 pm
However, on my side the connection is always very choppy: very frequently cutting out and then being silent for several seconds. I have configured the OBi for GV (SP1) and Callcentric (SP2) and it happens with both accounts.
While I cannot offer a solution, my situation is similar to yours. I have my OBi as you - GV(SP1) and Callcentric (SP2). I initially had GV set as my primary and I too experienced the choppy and long pause on GV calls. However, I didn't have any issues with Callcentric calls. I had to change Callcentric to my primary as my wife couldn't stand the choppy calls. We haven't experienced any problems through Callcentric.
EOC_Jason:
Maybe upgrade your WRT54G to the latest recommended firmware (i.e. check the DD-WRT forums, there's a stick with the recommended build to use)...
Likewise make sure QoS is DISABLED on the router. It seems to cause more problems than it solves on residential-grade routers...
waffles:
Thanks for all your replies.
I'll try my spare router next, see if this makes a difference.
daibaan:
I have similar config too, GV+Callcentric, however, I've been mainly using GV for almost all my calls, I am using a airlink AR430W DD-WRT as router.
I initially configure no QoS and protocol based (SIP, RTP) QoS on my router, this did not help, I then changed it to MAC based and IP base QoS, and saturate both my downlink and up link DSL channel with P2P upload/download and remote desktop updates, GV quality remain un-affected
My guess is that protocol based QoS takes a lot of CPU on the router to do deep packet inspection and does not work well, MAC/IP based QoS is better for low end router
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