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Roy Kim avatar image
Roy Kim asked ·

Question on router setting for QoS

It took some time and effort (and guts) to terminate a contract and move with a new phone compnay - ring central. I have had my challenges, and I feel like we have come a long way but I have been getting complaints about the quality of calls. I upgarde our internet bandwidth to 12Mbps Down and 1.5Mbps up. The last step was for me to set up QOS - I have set it up and I need help verifying that this is working. I don't know if this setting is helping our call quality.
qosciscoqos settingquality of voipwrvs4400n
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steve12345 avatar image
steve12345 answered ·
How is this setting working out? I have not had very good experiences with the  CISCO RV series routers, or Linksys E series.  
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Roy Kim answered ·
I am not 100% confident that the setting is accurate.  I was just reading your post, Steve, and the call had my voice echo-ing.  Sigh....
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Roy Kim answered ·
Steve, I appreciate this very much.  How about this setting?
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steve12345 answered ·
I just looked at your screenshot again. It looks like you need to configure the same ports for downstream as well. All you have configured is upstream.
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Roy Kim answered ·
Steve;
I don't have any other QoS rules unless they are hidden.  Again, I appreciate your help.  

Where are you located and what do you do?

I am Orange County, CA and we are a small engineering firm.
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steve12345 answered ·
Roy we are located in ST Louis MO. We provide IT cloud services, including Ring Central installation and support to customers throughout the US. I'd like to know if these settings, and more specifically, if that Cisco RV4400N router is working for your Ring Central service. I have had to replace these routers for other clients due to instability.
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Roy Kim answered ·
Ring Central recommended Cisco E1200 but I ran into issues of rebooting the router often so I thought I would give 4400N a try since they were "better" or more "expensive" and had the QOS option.  I should give the E1200 a try and see if whatever issue I had are resolved.
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Noone answered ·
Hi Roy, QOS is normally used to manage bandwidth when audio communication starts, RingCentral send and receive audio (RTP) on udp port ranges 20000 to 65535 therefore there is little or no impact on ringcentral voip calls priority when your internet use is high because the ports you have added are mostly used to create sessions and responses only with RingCentral SBC. It is suggested to add udp port range 20000-65535 to high on both directions just like others you have added. If you think suggested port range is too high then only use ring central ip addresses to use this udp range which can be supplied by RingCentral QOS team.
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Roy Kim answered ·
Whatever it will take for me to make this RIngCentral work.  Can you "show" me how to use the IP addresses to use this UDP range?

I had Cbeyond for my VOIP before and with just T1, I didn't have any issues.  
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steve12345 answered ·
Yeah that looks good. The only QoS rules I use are for the 3 ring central ports. I remove all other rules like your screen shot. Hope this works for you.
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