Multicast paging problem

Discussion in '3CX Phone System - General' started by aklawrence, Mar 12, 2014.

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  1. aklawrence

    Dec 8, 2011
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    I have several Polycom Soundpoint, Polycom VVX 410 and Snom PA1 phones that all work if they are in a ring group but if I try using multicast paging, I have no success.
    I can page from one handset to the others using the local paging option, but when I try to call the multicast paging group extension, I see a connection in the logs but the handsets never pick up the page. So I know the multicast settings are configured correctly because I can confirm the handsets can hear each other.
    In the logs I see the call come in to the correct extension, the virtual extension for the paging group respond and after I disconnect, I see No RTP packets were received. The exact sequence is below. Anything else I can look at? I've also tried changing to a different Multicast address, a different port and used several codecs, all without any luck.

    [MS105000] C:28619.2: No RTP packets were received:remoteAddr=,extAddr=,localAddr=
    12-Mar-2014 13:34:23.389 Leg L:28619.2[Page] is terminated: Cause: BYE from PBX
    12-Mar-2014 13:34:23.388 [CM503008]: Call(C:28619): Call is terminated
    12-Mar-2014 13:34:23.386 Leg L:28619.1[Line:10042<<+14153xxxxxxx] is terminated: Cause: BYE from
    12-Mar-2014 13:34:16.094 [CM503007]: Call(C:28619): Page:8010 has joined, contact <sip:8010@>
    12-Mar-2014 13:34:16.093 [CM503007]: Call(C:28619): Line:10042<<+14153xxxxxx has joined, contact <>
    12-Mar-2014 13:34:16.091 L:28619.2[Page] has joined to L:28619.1[Line:10042<<+14153455176]
    12-Mar-2014 13:34:15.925 [CM503025]: Call(C:28619): Calling T:page:8010@[Dev:sip:8010@;rinstance=27d0c7b3d1b7b5de] for L:28619.1[Line:10042<<+14153455176]
    12-Mar-2014 13:34:15.906 [CM503027]: Call(C:28619): From: Line:10042<<+14153xxxxxx ("Tony Lawrence" <sip:+14153xxxxx@>) to T:page:8010@[Dev:sip:8010@;rinstance=27d0c7b3d1b7b5de]
  2. craigreilly

    craigreilly Well-Known Member

    Feb 1, 2012
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    Just because handsets can hear each other means nothing...
    Do you have the multicast listener setup on each device - like
    Then either in 3cx or via blf to do a multicast page to that ip?

    What ip are you currently using?
    Also check multicast codec on device matches what 3cx is sending.

    I took 3cx out of the equation by paging directly from the phones...but not all have this ability.
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
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