Dismiss Notice
We would like to remind you that we’re updating our login process for all 3CX forums whereby you will be able to login with the same credentials you use for the Partner or Customer Portal. Click here to read more.

calls dropped after session-expires is reach

Discussion in '3CX Phone System - General' started by Luis C, Apr 11, 2018.

Thread Status:
Not open for further replies.
  1. Luis C

    Joined:
    Nov 6, 2017
    Messages:
    9
    Likes Received:
    0
    Hello,

    conference phones (grandstream GAC 2500) calls are been dropped with 488 Not Acceptable Here.
    The scenario is:
    phone-----------------------------------------------------------3CX----------------------------------------SIPTruk
    INVITE (no sesión-expires) -> INVITE (no sesión-expires)
    ? <- 200 OK (Session-Expires: 1800;refresher=uas)
    ...
    ? <- re-INVITE (Session-Expires: 1800;refresher=uac)
    -> 488 Not Acceptable Here

    The 488 is just generated after 15 minutes of ACK message, that is, when re-INVITE is received by 3CX following the sesión-expires header.

    This is the re-INVITE:
    INVITE sip:1111111111@10.1.6.11:5060 SIP/2.0
    Via: SIP/2.0/UDP 10.1.6.201:5060;branch=z9hG4bK796n5e20cg3lh77cjql0.1
    Max-Forwards: 69
    From: <sip:2222222222@10.1.6.201:5060>;tag=as75b0010d
    To: "G-04 Sala de Consolas"<sip:1111111111@10.1.6.11:5060>;tag=2369252d
    Contact: <sip:g0*2222222222@10.1.6.201:5060;transport=udp>
    Call-ID: _LZlkXDWp-JuAKfFzqRZ6g..
    CSeq: 102 INVITE
    Session-Expires: 1800;refresher=uac
    Min-SE: 90
    Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
    Supported: replaces, timer
    Content-Type: application/sdp
    Content-Length: 273
    v=0
    o=cooper 1438790713 1438790713 IN IP4 10.1.6.201
    s=-
    c=IN IP4 10.1.6.201
    t=0 0
    m=audio 8034 RTP/AVP 0 8 101
    a=rtpmap:0 PCMU/8000
    a=rtpmap:8 PCMA/8000
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-16
    a=silenceSupp:eek:ff - - - -
    a=maxptime:150
    a=sendrecv

    I would like to know how 3CX manage sesión-expires.
    Note I can check this scenario working properly, that is, we have calls with more 15 minutes duration but in these cases calls are dropped.

    Regards,
    Luis Carlos
     
  2. craigreilly

    craigreilly Well-Known Member

    Joined:
    Feb 1, 2012
    Messages:
    3,575
    Likes Received:
    305
    Are you programming manually?
    I have a Template I use for the 2500, and have no complaints of them ever dropping a call.
    I can share if you like.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
Thread Status:
Not open for further replies.