Unified Communications

 View Only
  • 1.  SIP phones "growling" or muffled ring tone

    Posted 6 days ago
    Hello,

    We are experiencing an odd behavior that I am trying to troubleshoot. On one floor at one of our office buildings, all the suites get a "growling" or muffled ring tone, and a delayed Caller ID. Sometimes the calls will not complete.

    When we trace on the network and with the carrier, we cannot any obvious errors. Since we are using TLS, I cannot see the details on the SIP transactions.

    Has anyone seen this occur and how were you able to fix it?

    Kind Regards, Richard


    ------------------------------
    Richard Browne
    Sr. Telecommunications Engineer
    Adventist HealthCare
    820 West Diamond Avenue, Suite 600
    Gaithersburg, MD 20878
    Office #: 1-240-826-6465 / 1-240-637-4045
    Email: RBrowne@AdventistHealthCare.com
    ------------------------------


  • 2.  RE: SIP phones "growling" or muffled ring tone

    Posted 6 days ago
    FYI, This is on a CM 8.1.3.5 with ASM 8.1.3.2 and G450 and G650 Gateways

    ------------------------------
    Richard Browne
    Sr. Telecommunications Engineer
    Adventist HealthCare
    820 West Diamond Avenue, Suite 600
    Gaithersburg, MD 20878
    Office #: 1-240-826-6465 / 1-240-637-4045
    Email: RBrowne@AdventistHealthCare.com
    ------------------------------



  • 3.  RE: SIP phones "growling" or muffled ring tone

    Posted 6 days ago

    Hello Richard -

     

    You might want to also include phone models and their firmware's as well?

     

    James Davis

    Lead Voice and Data Engineer

    Information Technology, Telecommunications

     

    University of Nebraska Medical Center / Nebraska Medicine

    985030 Nebraska Medical Center  |  Omaha, NE 68198-5030

    office 402.559.9498  |  pager 402.888.0815 | fax 402.559.9927

    jamesdavis@nebraskamed.com

     

    UNMC | Facebook | Twitter | YouTube | Flickr

     

    Useful Websites - ITS | Phones | Voice Mail | Phone User Guides & Labels

     

    Nebraska Medicine E-mail Confidentiality Disclaimer
    The information in this e-mail may be privileged and confidential, intended only for the use of the addressee(s) above. Any unauthorized use or disclosure of this information is prohibited. If you have received this e-mail by mistake, please delete it and immediately contact the sender.





  • 4.  RE: SIP phones "growling" or muffled ring tone

    Posted 6 days ago
    Hi James,

    Thanks for the suggestion. These are H.323 9611GD01A phones, using 6.8.5.1 File name (S9608_11HALBR6_8_5_11V474.tar) and the Kernel file is S96x1_UKR_V29r46_V29r46.tar

    Thanks, Richard

    ------------------------------
    Richard Browne
    Sr. Telecommunications Engineer
    Adventist HealthCare
    820 West Diamond Avenue, Suite 600
    Gaithersburg, MD 20878
    Office #: 1-240-826-6465 / 1-240-637-4045
    Email: RBrowne@AdventistHealthCare.com
    ------------------------------



  • 5.  RE: SIP phones "growling" or muffled ring tone

    Posted 5 days ago
    We have also been experiencing this for months, on 9611 phones with agents logged in. Phones are running 6.8.5.11_V474 and we're on CM `8.1.3.3.

    6.8.5.11 also introduced an issue with intermittent TLS registration failures on these phones (we previously had 100% of 96X1 phones registered via TLS on the prior phone software, 6.8.5.02).

    We have been testing the latest 96X1 software (6.8.5.2.b3) but upgrading to that version fixed neither issue. Downgrading the phone to 6.8.5.02 seemed to fix both the growling (our users call it "bubbling") noise and the TLS registration; downgrading the phone to 6.8.5.02 first then upgrading it to 6.8.5.2.b3 appeared to fix the growling issue, but the TLS registration issue reappeared.

    ------------------------------
    Marc Fenneuff
    Information Technologist
    Michigan State University
    East Lansing MI
    ------------------------------



  • 6.  RE: SIP phones "growling" or muffled ring tone

    Posted 5 days ago
    Hi Marc,

    Thanks for the helpful suggestions. It sounds like I am not the only person having this issue. I will try the 6.8.5.02 version. It can only be better than what my customers are complaining about now. Thanks.

    Kind regards, Richard

    ------------------------------
    Richard Browne
    Sr. Telecommunications Engineer
    Adventist HealthCare
    820 West Diamond Avenue, Suite 600
    Gaithersburg, MD 20878
    Office #: 1-240-826-6465 / 1-240-637-4045
    Email: RBrowne@AdventistHealthCare.com
    ------------------------------



  • 7.  RE: SIP phones "growling" or muffled ring tone

    Posted 5 days ago
    This sounds like a network issue..  Could be a slow loop, such as through a phone, or a sleeping computer flooding IPv6 multicast listener flooding (happens when computers with certain Intel NICs go to sleep).   I would bet the latter, as we've seen first hand how the IPv6 multicast flood impacts the H323 firmware on the 96x1 phones (makes them very sluggish).  You should be able to see a multicast flood in Wireshark.  It'll appear as a massive amount of IPv6 multicast traffic.  Your phones don't need to have IPv6 enabled to be impacted, either.

    As a side note... Your CM is ahead of your ASM, and I assume ahead of your SMGR.  They should all be at the same patch level, starting with SMGR.  At least that used to be Avaya's stance.   The order of upgrade was always:  SMGR, ASM, BSM, LSP, ESS, CM.

    -Sam

    ------------------------------
    Sam Osheroff
    UC Engineer
    University of Washington
    Seattle WA
    ------------------------------



  • 8.  RE: SIP phones "growling" or muffled ring tone

    COMMITTEE MEMBER
    Posted 5 days ago
    We've not heard it called 'growling,' but we do hear it.  Our customers have said the phone makes a 'farting' noise and they are unable to pick it up.

    We've narrowed it down to a firmware release, we think.  We very much experienced the issue with the 6.8.5.1 H.323 release, when the phones did not directly upgrade from the 6.8.5.0 or 6.8.4 releases.  If they did, things seemed to be OK, but we found phones that went directly to 6.8.5.1 from an earlier than 6.8.4, they experienced this issue.

    Our fix so far as been to downgrade to 6.8.5.0 then upgrade immediately after to 6.8.5.2.  We just started this process for the phones that have reported it, and have seen favorable results.  Don't know if it is the 100% fix though, since we've only been deploying it for less than a week so far.

    ------------------------------
    Nick Kwiatkowski
    Director of Design and Engineering
    Michigan State University
    East Lansing MI
    ------------------------------



  • 9.  RE: SIP phones "growling" or muffled ring tone

    Posted 5 days ago
    Hi Nick,

    Thanks for letting my know about the firmware upgrade path. I will try to get some Maintenance Window time to test this out.

    Kind Regards, Richard

    ------------------------------
    Richard Browne
    Sr. Telecommunications Engineer
    Adventist HealthCare
    820 West Diamond Avenue, Suite 600
    Gaithersburg, MD 20878
    Office #: 1-240-826-6465 / 1-240-637-4045
    Email: RBrowne@AdventistHealthCare.com
    ------------------------------



  • 10.  RE: SIP phones "growling" or muffled ring tone

    Posted 5 days ago
    Hi Sam,

    Thanks for the suggestion. I will pass this along to my network team for further investigation.

    Kind Regards, Richard

    ------------------------------
    Richard Browne
    Sr. Telecommunications Engineer
    Adventist HealthCare
    820 West Diamond Avenue, Suite 600
    Gaithersburg, MD 20878
    Office #: 1-240-826-6465 / 1-240-637-4045
    Email: RBrowne@AdventistHealthCare.com
    ------------------------------