[Freeswitch-users] Help with a Cisco 7970 phone.

Matt Piermarini matt at partlytrue.com
Fri Dec 23 19:35:53 MSK 2011


Hello all,

I have been trying forever to get this Cisco 7970 to work properly with 
our freeswitch (latest git).  The phone will register fine, and it will 
make outbound calls perfectly.  The problem is with inbound calls to 
this phone, where FS tries to contact it on the wrong UDP port.  The 
entire system here is on a local lan, and NAT has been disabled via 
--nonat cmd line FS parameter.

Here is what it looks like when registered:

sofia status profile internal reg

Call-ID: 00181844-c24f0002-25f0dff2-c470b5a7 at 192.168.2.59
User: 15 at x.y.com
Contact:        "user" 
<sip:15 at 192.168.2.59:5060;transport=udp;fs_nat=yes;fs_path=sip%3A15%40192.168.2.59%3A49320%3Btransport%3Dudp>
Agent:          Cisco-CP7970G/8.5.2
Status:         Registered(UDP-NAT)(unknown) EXP(2011-12-22 21:31:47) 
EXPSECS(724)
Host:           x.y.com
IP:             192.168.2.59
Port:           49165
Auth-User:      15
Auth-Realm:     x.y.com


FS tries to contact the phone using the fs_path, which is getting set 
incorrectly.  I'm not why FS thinks the fs_path should be different, as 
it appears the Cisco is sending proper Contact header in the sip 
requests/responses.
Also, we have a bunch of ATA's on the same lan which all work fine 
(meaning the fs_path is correct).  I tried chaning the NDLB-force-rport 
param in the internal context, but didn't seems to change anything.
Here are the SIP traces which show what's happening.  Any ideas of 
what's going on would be appreciated.

Thanks,
Matt

192.168.2.59 is the cisco phone.
192.168.2.1 is FS (listening on port 5070).

recv 713 bytes from udp/[192.168.2.59]:49320 at 02:28:01.712338:
    ------------------------------------------------------------------------
    REGISTER sip:x.y.com SIP/2.0
    Via: SIP/2.0/UDP 192.168.2.59:5060;branch=z9hG4bKd9e43394
    From: <sip:15 at x.y.com>;tag=00181844c24f0002a0bb4968-7b2b7dd4
    To: <sip:15 at x.y.com>
    Call-ID: 00181844-c24f0002-eb21e8a8-77681214 at 192.168.2.59
    Max-Forwards: 70
    Date: Fri, 23 Dec 2011 02:28:00 GMT
    CSeq: 101 REGISTER
    User-Agent: Cisco-CP7970G/8.5.2
    Contact: 
<sip:15 at 192.168.2.59:5060;transport=udp>;+sip.instance="<urn:uuid:00000000-0000-0000-0000-00181844c24f>";+u.sip!model.ccm.cisco.com="30006"
    Supported: (null),X-cisco-xsi-7.0.1
    Content-Length: 0
    Reason: SIP;cause=200;text="cisco-alarm:20 Name=SEP00181844C24F 
Load=SIP70.8-5-2S Last=phone-keypad"
    Expires: 3600

send 689 bytes to udp/[192.168.2.59]:5060 at 02:28:01.715057:
    ------------------------------------------------------------------------
    SIP/2.0 401 Unauthorized
    Via: SIP/2.0/UDP 192.168.2.59:5060;branch=z9hG4bKd9e43394
    From: <sip:15 at x.y.com>;tag=00181844c24f0002a0bb4968-7b2b7dd4
    To: <sip:15 at x.y.com>;tag=Qv2N52egZ2teH
    Call-ID: 00181844-c24f0002-eb21e8a8-77681214 at 192.168.2.59
    CSeq: 101 REGISTER
    User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-8059cdc 2011-12-22 
14-03-32 -0600
    Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, 
REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
    Supported: timer, precondition, path, replaces
    WWW-Authenticate: Digest realm="x.y.com", 
nonce="fae142ab-8b00-4ac7-89d7-04955e8714f6", algorithm=MD5, qop="auth"
    Content-Length: 0

recv 958 bytes from udp/[192.168.2.59]:49320 at 02:28:01.725802:
    ------------------------------------------------------------------------
    REGISTER sip:x.y.com SIP/2.0
    Via: SIP/2.0/UDP 192.168.2.59:5060;branch=z9hG4bK18d5a468
    From: <sip:15 at x.y.com>;tag=00181844c24f0002a0bb4968-7b2b7dd4
    To: <sip:15 at x.y.com>
    Call-ID: 00181844-c24f0002-eb21e8a8-77681214 at 192.168.2.59
    Max-Forwards: 70
    Date: Fri, 23 Dec 2011 02:28:00 GMT
    CSeq: 102 REGISTER
    User-Agent: Cisco-CP7970G/8.5.2
    Contact: 
<sip:15 at 192.168.2.59:5060;transport=udp>;+sip.instance="<urn:uuid:00000000-0000-0000-0000-00181844c24f>";+u.sip!model.ccm.cisco.com="30006"
    Authorization: Digest 
username="15",realm="x.y.com",uri="sip:x.y.com",response="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",nonce="fae142ab-8b00-4ac7-89d7-04955e8714f6",cnonce="4f2a64d4",qop=auth,nc=00000001,algorithm=MD5
    Supported: (null),X-cisco-xsi-7.0.1
    Content-Length: 0
    Reason: SIP;cause=200;text="cisco-alarm:20 Name=SEP00181844C24F 
Load=SIP70.8-5-2S Last=phone-keypad"
    Expires: 3600

send 649 bytes to udp/[192.168.2.59]:5060 at 02:28:01.737460:
    ------------------------------------------------------------------------
    SIP/2.0 200 OK
    Via: SIP/2.0/UDP 192.168.2.59:5060;branch=z9hG4bK18d5a468
    From: <sip:15 at x.y.com>;tag=00181844c24f0002a0bb4968-7b2b7dd4
    To: <sip:15 at x.y.com>;tag=SeN78rgQSm7Kr
    Call-ID: 00181844-c24f0002-eb21e8a8-77681214 at 192.168.2.59
    CSeq: 102 REGISTER
    Contact: <sip:15 at 192.168.2.59:5060;transport=udp>;expires=3600
    Date: Fri, 23 Dec 2011 02:28:01 GMT
    User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-8059cdc 2011-12-22 
14-03-32 -0600
    Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, 
REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
    Supported: timer, precondition, path, replaces
    Content-Length: 0

*--------------- OK, so far so good.. phone is now registered..   Now 
look how FS tries to contact it.. sending notify's here:  Note the port 
it tries to use, 49320 in this case.*

send 1034 bytes to udp/[192.168.2.59]:49320 at 02:28:01.837149:
    ------------------------------------------------------------------------
    NOTIFY 
sip:15 at 192.168.2.59:5060;transport=udp;fs_nat=yes;fs_path=sip:15%40192.168.2.59:49320%3Btransport%3Dudp 
SIP/2.0
    Via: SIP/2.0/UDP 192.168.2.1:5070;rport;branch=z9hG4bKv92r0r53rQKNa
    Route: <sip:15 at 192.168.2.59:49320>;transport=udp
    Max-Forwards: 70
    From: <sip:15 at 192.168.2.1>;tag=U07rcFjyK6KSF
    To: <sip:15 at 192.168.2.1>
    Call-ID: 93e179d6-a7b0-122f-d396-5254003b348b
    CSeq: 21967576 NOTIFY
    Contact: <sip:mod_sofia at 192.168.2.1:5070>
    User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-8059cdc 2011-12-22 
14-03-32 -0600
    Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, 
REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
    Supported: timer, precondition, path, replaces
    Event: message-summary
    Allow-Events: talk, hold, presence, dialog, line-seize, call-info, 
sla, include-session-description, presence.winfo, message-summary, refer
    Subscription-State: terminated;reason=timeout
    Content-Type: application/simple-message-summary
    Content-Length: 69

    Messages-Waiting: no
    Message-Account: sip:15 at x.y.com

*The phone never responds, as FS is supposed to contact it on port 5060, 
but FS is trying to use the same port that phone sent is SIP messages 
on.  Here is a sample INVITE:*

send 1229 bytes to udp/[192.168.2.59]:49320 at 02:38:15.217775:
    ------------------------------------------------------------------------
    INVITE sip:15 at 192.168.2.59:5060;transport=udp SIP/2.0
    Via: SIP/2.0/UDP 192.168.2.1:5070;rport;branch=z9hG4bK0D8U748HDUc0r
    Route: <sip:15 at 192.168.2.59:49320>;transport=udp
    Max-Forwards: 69
    From: "x x x" <sip:11 at 192.168.2.1>;tag=63X9ZrB5K886e
    To: <sip:15 at 192.168.2.59:5060;transport=udp>
    Call-ID: 00e33727-a7b2-122f-d396-5254003b348b
    CSeq: 21967883 INVITE
    Contact: <sip:mod_sofia at 192.168.2.1:5070>
    User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-8059cdc 2011-12-22 
14-03-32 -0600
    Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, 
REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
    Supported: timer, precondition, path, replaces
    Allow-Events: talk, hold, presence, dialog, line-seize, call-info, 
sla, include-session-description, presence.winfo, message-summary, refer
    Content-Type: application/sdp
    Content-Disposition: session
    Content-Length: 204
    X-FS-Support: update_display,send_info
    Remote-Party-ID: "x x x" 
<sip:11 at 192.168.2.1>;party=calling;screen=yes;privacy=off

    v=0
    o=FreeSWITCH 1324545412 1324545413 IN IP4 192.168.2.1
    s=FreeSWITCH
    c=IN IP4 192.168.2.1
    t=0 0
    m=audio 62482 RTP/AVP 18 0 8 101 13
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-16
    a=ptime:20

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