Results 1 to 3 of 3

Thread: issue with picking up parked calls (gets disconected)

  1. #1

    Default issue with picking up parked calls (gets disconected)

    We are having the below issue and I'm not sure where to look (epygi or snom).

    epygi M32x firmware: 5.3.61

    handsets are snoms
    handset A firmware: 7.3.27 (has been in the field for a very long time without any config updates)
    handset B firmware: 8.4.35 (has recently be migrated from a snom 300 to a snom 320)

    Call is placed on hold on handset A:
    - call can be successfully picked up from A
    - however the call cannot be pickup from B, call simply gets disconnected as soon as it gets pickup by dialing the park etx.

    Where should I look?

  2. #2

    Default

    Further on this issue. I've managed to 'fix' most of the affected snom phones by making the sip username (Line Settings->Line -> Username). I'm not sure why this made it worked when others have no issues.

    However one particular extention / handset refused to be fixed this way. Below is a UDP SIP trace from a pcap capture using the Snom pcap file.

    Code:
    SIP/2.0 200 OK
    Via: SIP/2.0/UDP 192.168.xx.yy:5060;branch=z9hG4bKEPSVBUS8b26bd31-c046-416e-bca0-71fbdffbe818
    From: "Woods" <sip:1010@192.168.a.b>;tag=141257708272950f63-cacc-44db-8328-644024908181
    To: <sip:cau1272@192.168.xx.yy:5060>;tag=9a3qn6y3mq
    Call-ID: 17026787959766871_e54aa047-2968-46fc-9811-c8b4401498db@pbx.corp.xxx.com
    CSeq: 188 CANCEL
    Content-Length: 0
    
    SIP/2.0 487 Request Terminated
    Via: SIP/2.0/UDP 192.168.xx.yy:5060;rport=5060;branch=z9hG4bKEPSVBUS8b26bd31-c046-416e-bca0-71fbdffbe818
    From: "Woods" <sip:1010@192.168.a.b>;tag=141257708272950f63-cacc-44db-8328-644024908181
    To: <sip:cau1272@192.168.xx.yy:5060>;tag=9a3qn6y3mq
    Call-ID: 17026787959766871_e54aa047-2968-46fc-9811-c8b4401498db@pbx.corp.xxx.com
    CSeq: 188 INVITE
    Contact: <sip:cau1272@192.168.bb.121:2050>;reg-id=1
    Content-Length: 0
    
    ACK sip:cau1272@192.168.bb.121:2050 SIP/2.0
    Via: SIP/2.0/UDP 192.168.xx.yy:5060;rport;branch=z9hG4bKEPSVBUS8b26bd31-c046-416e-bca0-71fbdffbe818
    To: <sip:cau1272@192.168.xx.yy:5060>;tag=9a3qn6y3mq
    From: "Woods" <sip:1010@192.168.a.b>;tag=141257708272950f63-cacc-44db-8328-644024908181
    CSeq: 188 ACK
    Call-ID: 17026787959766871_e54aa047-2968-46fc-9811-c8b4401498db@pbx.corp.xxx.com
    User-Agent: Epygi Quadro SIP User Agent/v5.3.64 (QUADROM-IPPBX)
    Max-Forwards: 70
    Content-Length: 0
    
    INVITE sip:140@192.168.xx.yy:5060;user=phone SIP/2.0
    Via: SIP/2.0/UDP 192.168.bb.121:2050;branch=z9hG4bK-iz0ux5x8j8rl;rport
    From: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    To: <sip:140@192.168.xx.yy:5060;user=phone>
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    CSeq: 1 INVITE
    Max-Forwards: 70
    Contact: <sip:cau1272@192.168.bb.121:2050>;reg-id=1
    X-Serialnumber: 0004134D0104
    P-Key-Flags: keys="3"
    User-Agent: snom320/8.7.3.25
    Accept: application/sdp
    Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK, MESSAGE, INFO, UPDATE
    Allow-Events: talk, hold, refer, call-info
    Supported: 100rel, replaces, from-change
    Content-Type: application/sdp
    Content-Length: 802
    
    v=0
    o=root 1407939720 1407939720 IN IP4 192.168.bb.121
    s=call
    c=IN IP4 192.168.bb.121
    t=0 0
    m=audio 54564 RTP/SAVP 9 0 8 3 99 108 18 101
    a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:Vig+uxJ6+xJahJ1YH44w7ypSdyMGRwtByA7ACMmV
    a=rtpmap:9 G722/8000
    a=rtpmap:0 PCMU/8000
    a=rtpmap:8 PCMA/8000
    a=rtpmap:3 GSM/8000
    a=rtpmap:99 G726-32/8000
    a=rtpmap:108 AAL2-G726-32/8000
    a=rtpmap:18 G729/8000
    a=fmtp:18 annexb=no
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    a=ptime:20
    a=sendrecv
    m=audio 54564 RTP/AVP 9 0 8 3 99 108 18 101
    a=rtpmap:9 G722/8000
    a=rtpmap:0 PCMU/8000
    a=rtpmap:8 PCMA/8000
    a=rtpmap:3 GSM/8000
    a=rtpmap:99 G726-32/8000
    a=rtpmap:108 AAL2-G726-32/8000
    a=rtpmap:18 G729/8000
    a=fmtp:18 annexb=no
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    a=ptime:20
    a=sendrecv
    SIP/2.0 100 Trying
    Via: SIP/2.0/UDP 192.168.bb.121:2050;rport=2050;branch=z9hG4bK-iz0ux5x8j8rl
    To: <sip:140@192.168.xx.yy:5060;user=phone>
    From: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    CSeq: 1 INVITE
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    Content-Length: 0
    
    SIP/2.0 401 Unauthorized
    Via: SIP/2.0/UDP 192.168.bb.121:2050;rport=2050;branch=z9hG4bK-iz0ux5x8j8rl
    To: <sip:140@192.168.xx.yy:5060;user=phone>
    From: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    CSeq: 1 INVITE
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    Server: Epygi Quadro SIP User Agent/v5.3.64 (QUADROM-IPPBX)
    WWW-Authenticate: Digest realm="pbx.corp.xxx.com",nonce="4cbb0275f00f17791ac6815136447dbe",opaque="1413250531"
    Content-Length: 0
    
    ACK sip:140@192.168.xx.yy:5060;user=phone SIP/2.0
    Via: SIP/2.0/UDP 192.168.bb.121:2050;branch=z9hG4bK-iz0ux5x8j8rl;rport
    From: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    To: <sip:140@192.168.xx.yy:5060;user=phone>
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    CSeq: 1 ACK
    Max-Forwards: 70
    Contact: <sip:cau1272@192.168.bb.121:2050>;reg-id=1
    Content-Length: 0
    
    INVITE sip:140@192.168.xx.yy:5060;user=phone SIP/2.0
    Via: SIP/2.0/UDP 192.168.bb.121:2050;branch=z9hG4bK-r201nsfk5u6h;rport
    From: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    To: <sip:140@192.168.xx.yy:5060;user=phone>
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    CSeq: 2 INVITE
    Max-Forwards: 70
    Contact: <sip:cau1272@192.168.bb.121:2050>;reg-id=1
    X-Serialnumber: 0004134D0104
    P-Key-Flags: keys="3"
    User-Agent: snom320/8.7.3.25
    Accept: application/sdp
    Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK, MESSAGE, INFO, UPDATE
    Allow-Events: talk, hold, refer, call-info
    Supported: 100rel, replaces, from-change
    Authorization: Digest username="cau1272",realm="pbx.corp.xxx.com",nonce="4cbb0275f00f17791ac6815136447dbe",uri="sip:140@192.168.xx.yy:5060;user=phone",response="b2390a24a2118d3814d53faa4442131c",opaque="1413250531",algorithm=MD5
    Content-Type: application/sdp
    Content-Length: 802
    
    v=0
    o=root 1407939720 1407939720 IN IP4 192.168.bb.121
    s=call
    c=IN IP4 192.168.bb.121
    t=0 0
    m=audio 54564 RTP/SAVP 9 0 8 3 99 108 18 101
    a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:Vig+uxJ6+xJahJ1YH44w7ypSdyMGRwtByA7ACMmV
    a=rtpmap:9 G722/8000
    a=rtpmap:0 PCMU/8000
    a=rtpmap:8 PCMA/8000
    a=rtpmap:3 GSM/8000
    a=rtpmap:99 G726-32/8000
    a=rtpmap:108 AAL2-G726-32/8000
    a=rtpmap:18 G729/8000
    a=fmtp:18 annexb=no
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    a=ptime:20
    a=sendrecv
    m=audio 54564 RTP/AVP 9 0 8 3 99 108 18 101
    a=rtpmap:9 G722/8000
    a=rtpmap:0 PCMU/8000
    a=rtpmap:8 PCMA/8000
    a=rtpmap:3 GSM/8000
    a=rtpmap:99 G726-32/8000
    a=rtpmap:108 AAL2-G726-32/8000
    a=rtpmap:18 G729/8000
    a=fmtp:18 annexb=no
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    a=ptime:20
    a=sendrecv
    SIP/2.0 100 Trying
    Via: SIP/2.0/UDP 192.168.bb.121:2050;rport=2050;branch=z9hG4bK-r201nsfk5u6h
    To: <sip:140@192.168.xx.yy:5060;user=phone>
    From: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    CSeq: 2 INVITE
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    Content-Length: 0
    
    SIP/2.0 180 Ringing
    Via: SIP/2.0/UDP 192.168.bb.121:2050;rport=2050;branch=z9hG4bK-r201nsfk5u6h
    To: <sip:140@192.168.xx.yy:5060;user=phone>;tag=1412577082db1a6228-4ab2-4ad1-9265-cf4444688bdc
    From: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    CSeq: 2 INVITE
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    Contact: <sip:140@192.168.xx.yy:5060>
    Server: Epygi Quadro SIP User Agent/v5.3.64 (QUADROM-IPPBX)
    Content-Length: 0
    
    SIP/2.0 200 OK
    Via: SIP/2.0/UDP 192.168.bb.121:2050;rport=2050;branch=z9hG4bK-r201nsfk5u6h
    To: <sip:140@192.168.xx.yy:5060;user=phone>;tag=1412577082db1a6228-4ab2-4ad1-9265-cf4444688bdc
    From: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    CSeq: 2 INVITE
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, UPDATE
    Contact: <sip:140@192.168.xx.yy:5060>
    Content-Type: application/sdp
    Supported: replaces, norefersub
    Server: Epygi Quadro SIP User Agent/v5.3.64 (QUADROM-IPPBX)
    Content-Length: 172
    
    v=0
    o=- 201 943 IN IP4 192.168.xx.yy
    s=-
    c=IN IP4 0.0.0.0
    t=0 0
    m=audio 65534 RTP/AVP 8 101
    a=rtpmap:8 PCMA/8000
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    ACK sip:140@192.168.xx.yy:5060 SIP/2.0
    Via: SIP/2.0/UDP 192.168.bb.121:2050;branch=z9hG4bK-dqmv0ayjvsh0;rport
    From: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    To: <sip:140@192.168.xx.yy:5060;user=phone>;tag=1412577082db1a6228-4ab2-4ad1-9265-cf4444688bdc
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    CSeq: 2 ACK
    Max-Forwards: 70
    Contact: <sip:cau1272@192.168.bb.121:2050>;reg-id=1
    Content-Length: 0
    
    INVITE sip:cau1272@192.168.bb.121:2050 SIP/2.0
    Via: SIP/2.0/UDP 192.168.xx.yy:5060;rport;branch=z9hG4bKEPSVBUSf3b2e500-a750-4677-830c-5c14a3d2f5b5
    To: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    From: <sip:140@192.168.xx.yy:5060;user=phone>;tag=1412577082db1a6228-4ab2-4ad1-9265-cf4444688bdc
    CSeq: 97 INVITE
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    Accept: application/sdp
    Contact: <sip:140@192.168.xx.yy:5060>
    User-Agent: Epygi Quadro SIP User Agent/v5.3.64 (QUADROM-IPPBX)
    P-Asserted-Identity: "Woods" <sip:1010@192.168.a.b;transport=UDP>
    Max-Forwards: 70
    Content-Length: 0
    
    SIP/2.0 200 Ok
    Via: SIP/2.0/UDP 192.168.xx.yy:5060;rport=5060;branch=z9hG4bKEPSVBUSf3b2e500-a750-4677-830c-5c14a3d2f5b5
    From: <sip:140@192.168.xx.yy:5060;user=phone>;tag=1412577082db1a6228-4ab2-4ad1-9265-cf4444688bdc
    To: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    CSeq: 97 INVITE
    Contact: <sip:cau1272@192.168.bb.121:2050>;reg-id=1
    User-Agent: snom320/8.7.3.25
    Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK, MESSAGE, INFO, UPDATE
    Allow-Events: talk, hold, refer, call-info
    Supported: 100rel, replaces, from-change
    Content-Type: application/sdp
    Content-Length: 802
    
    v=0
    o=root 1407939720 1407939721 IN IP4 192.168.bb.121
    s=call
    c=IN IP4 192.168.bb.121
    t=0 0
    m=audio 54564 RTP/SAVP 9 0 8 3 99 108 18 101
    a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:Vig+uxJ6+xJahJ1YH44w7ypSdyMGRwtByA7ACMmV
    a=rtpmap:9 G722/8000
    a=rtpmap:0 PCMU/8000
    a=rtpmap:8 PCMA/8000
    a=rtpmap:3 GSM/8000
    a=rtpmap:99 G726-32/8000
    a=rtpmap:108 AAL2-G726-32/8000
    a=rtpmap:18 G729/8000
    a=fmtp:18 annexb=no
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    a=ptime:20
    a=sendrecv
    m=audio 54564 RTP/AVP 9 0 8 3 99 108 18 101
    a=rtpmap:9 G722/8000
    a=rtpmap:0 PCMU/8000
    a=rtpmap:8 PCMA/8000
    a=rtpmap:3 GSM/8000
    a=rtpmap:99 G726-32/8000
    a=rtpmap:108 AAL2-G726-32/8000
    a=rtpmap:18 G729/8000
    a=fmtp:18 annexb=no
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    a=ptime:20
    a=sendrecv
    BYE sip:140@192.168.xx.yy:5060 SIP/2.0
    Via: SIP/2.0/UDP 192.168.bb.121:2050;branch=z9hG4bK-99310pxrbxdy;rport
    From: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    To: <sip:140@192.168.xx.yy:5060;user=phone>;tag=1412577082db1a6228-4ab2-4ad1-9265-cf4444688bdc
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    CSeq: 3 BYE
    Max-Forwards: 70
    Contact: <sip:cau1272@192.168.bb.121:2050>;reg-id=1
    User-Agent: snom320/8.7.3.25
    Content-Length: 0
    
    SIP/2.0 200 OK
    Via: SIP/2.0/UDP 192.168.bb.121:2050;rport=2050;branch=z9hG4bK-99310pxrbxdy
    To: <sip:140@192.168.xx.yy:5060;user=phone>;tag=1412577082db1a6228-4ab2-4ad1-9265-cf4444688bdc
    From: "CAU 1272" <sip:cau1272@192.168.xx.yy:5060>;tag=pvivf41ma0
    CSeq: 3 BYE
    Call-ID: 543c7de18fa7-p3cgfwr3o3t1
    Server: Epygi Quadro SIP User Agent/v5.3.64 (QUADROM-IPPBX)
    Content-Length: 0
    ext 140 is where the call is paarked on.
    ext 1272 is the handset that is unable to pickup any parked call.

    Can anyone shed some light on to what is going on here? or why making the username longer apears to have 'fixed' the issue?

  3. #3

    Default

    It appears I have managed to fix the (call drop on pickup) problem



    The details:

    Looking deeper into further into the wireshark trace I can see that there was some problem with codec negotiation. It tried 2 codecs then stopped! (and dropped the call).



    Reading this thread https://forum.snom.com/index.php?showtopic=10821 and another thread (which I can't seem to locate anymore). It mentioned that in newer version of the Snom firmware the list of default codec http://wiki.snom.com/wiki/index.php/..._priority_list is quite long which can cause packet fragmentation / broken packet issues (something along those lines).



    The default list was: g722,pcmu,pcma,gsm,g726-32,aal2-g726-32,g723,g729,telephone-event

    I shortened to: pcma,pcmu,g722,g729,telephone-event



    I also made sure the allowed codec on Epygi are those listed. Combination of this seemed to have fixed the issue. I'm currently monitoring this before I declare it solved.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Issue with picking up incoming calls
    By zet in forum Troubleshooting and Problems
    Replies: 2
    Last Post: 10-24-2013, 01:44 PM
  2. Issue with phones internal calls, outgoing calls
    By zet in forum Troubleshooting and Problems
    Replies: 1
    Last Post: 03-18-2013, 04:13 PM
  3. Config Parked extension display on phone LCD
    By woods in forum 'How Do I' Questions
    Replies: 7
    Last Post: 09-26-2011, 01:31 AM
  4. Password protecting external calls issue
    By andrew.beer@excellence-it.co.uk in forum Troubleshooting and Problems
    Replies: 4
    Last Post: 02-14-2009, 05:50 AM
  5. Delay when picking up FXO Calls
    By support@caman.com.au in forum Troubleshooting and Problems
    Replies: 0
    Last Post: 11-30-2006, 03:55 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •