RingCentral VoIP & Shibby 1.28 on Asus RT-N66U

Discussion in 'Tomato Firmware' started by mdopro1, Mar 12, 2014.

  1. mdopro1

    mdopro1 Reformed Router Member

    I have 2 VoIP phone systems with RingCentral and all was working near-perfect, then I changed my router.

    I'm getting some random dropped calls and about 20% of calls come in sounding choppy enough that I can't understand the other party and have to call them back. I've noticed incoming calls are mostly choppy, I haven't experienced a choppy call when outgoing.

    I have the latest Shibby 1.28 on a brand new Asus RT-N66U.

    QOS is off by default.

    My setup is very simple. I have 3 Wifi networks (1x2.4ghz, 1x5ghz, 1x2.4ghz guest) - I also have few non-windows machines with no hostname entered into DNSMasq.

    All IP addresses are DHCP assigned so they never change. Except for guest computers, they are dynamic.

    I'm usually scared of QOS because long time ago when QOS was brand new in consumer routers I broke something really bad. So I need helping hand before I touch anything in that area.

  2. FattysGoneWild

    FattysGoneWild LI Guru Member

    What kind of internet speed do you have through ISP? Voip takes little to nothing. Surprised you are having a issue. Yes qos is dangerous and can break things if not done right. Not much help. Sorry. But, I would wait for assistance with setup regarding that if it comes down to it. I won't blindly touch it either. I don't know how many users you have using that router and internet speed. But, seems like it is becoming to saturated when in use. Voip that is.
  3. Marcel Tunks

    Marcel Tunks Networkin' Nut Member

    QoS works quite well, as does the bandwidth limiter. Either one will preserve bandwidth and reduce latency for VoIP.

    Are your VoIP devices wired or wireless? What 2.4GHz channels and channel widths are you using? What is your WAN throughput on speedtest.net?
  4. mdopro1

    mdopro1 Reformed Router Member

    I have a fast connection with 15MBps down and 7MBps upload. Also never had this problem with my cheapo TPLink router. There are several users but mostly all local traffic to a local server. No heavy load on WAN.
  5. mdopro1

    mdopro1 Reformed Router Member

    15/7 down/up for my internet through speedtest.net

    VoIP devices are wired, DHCP assigned IP through the router.
  6. FattysGoneWild

    FattysGoneWild LI Guru Member

    Anyone help you yet on this?
  7. mdopro1

    mdopro1 Reformed Router Member

    Nah! I also got busy at work so had to drop it for a day or two. Any help is appreciated. I guess someone who is using some kind of VoIP service with experience can shed some light.
  8. cloneman

    cloneman Addicted to LI Member

    QoS will only help you if the source of your call quality troubles is congestion/saturation.

    If you have bad call quality while your internet connection is barely being used for other stuff, it's a seperate issue unlrelated to QoS. I would try different VoIP servers or service providers before going too far into advanced troubleshooting.

    There's also the visualware VoIP testing website for synthetic VoIP benchmarks. (site needs Java though)
  9. mp1111

    mp1111 Reformed Router Member


    You might want to check in Tomato config under Advanced->Contrack/Netfilter and disable sip.(uncheck sip)

    please test after this change and let me know if there's any improvement.

  10. FattysGoneWild

    FattysGoneWild LI Guru Member

    I don't mean to hijack this thread or be rude about it. Please let me know if I need to make my own thread. I just thought by mp111 mentioning something specific I was interested in. Would go ahead and ask here instead of making a new thread. I have Ooma Telo voip. I recently upgraded to Victek's firmware about 2 weeks ago. Ooma has been working fine. But, mp111 you mentioned SIP. Ooma apparently does not use it and I was always told to leave SIP unchecked. Even using the stock Linksys firmware. But, it is checked by default in the Victek firmware. What should I do? Leave it or uncheck it?
  11. lancethepants

    lancethepants Network Guru Member

    Sip settings are irrelevant for ooma. They use sip, but it is tunneled through an OpenVPN connection.
    koitsu likes this.
  12. FattysGoneWild

    FattysGoneWild LI Guru Member

    Oh okay. Thanks for the reply! So, should I just leave the default setting checked for sip? Or go ahead and uncheck it?
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