[OpenSIPS-Users] Again BLF and Presence with Snom 7xx phones and OpenSips

sevpal sevpal at aol.com
Thu Mar 19 16:45:41 CET 2015


You need to handle the in-dialog SUBSCRIBE requests. eg:

if has_totag() {
    ...
    if (loose_route()) {
        ...
    } else {
        ...    
    if (is_method("SUBSCRIBE")) { 
      route(2);
      exit; 
    }
    ...
  }
  ...        
}

From: Bogdan-Andrei Iancu 
Sent: Thursday, February 26, 2015 7:56 AM
To: OpenSIPS users mailling list ; mailto:michele.pinassi at unisi.it 
Subject: Re: [OpenSIPS-Users] Again BLF and Presence with Snom 7xx phones and OpenSips

Hi Michele,

The problem in your script is that you do not handle the sequential (in-dialog) SUBSCRIBE requests (as you have the second one in your trace, ending with 404 and terminating the subscription).

In the " if ( has_totag() ) " block, you have:    
    } else { 
        if (is_method("SUBSCRIBE") && $rd == "127.0.0.1:5060") { # CUSTOMIZE ME

The $rd detection does not cover all your cases, as you configure the presence module to advertise as SIP contact "sip:presence at voip.unisi.it:5060". So, the test fails.

You can adapt the test like:
        if (is_method("SUBSCRIBE") && $rd == "voip.unisi.it") { # CUSTOMIZE ME

Or set the contact in presence with the real IP:
        modparam("presence", "server_address", mailto:sip:presence at 127.0.0.1:5060)

Best regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.comOn 24.02.2015 12:04, Michele Pinassi wrote:

  Hi all,

  I'm still stuck on this issue: BLF not working. For example, on my SNOM 760 (ext 5002) i activated BLF for some ext, like 5020. Using SIPGREP i saw:

  SUBSCRIBE sip:5020 at voip.unisi.it;user=phone SIP/2.0.
  Via: SIP/2.0/UDP 172.20.1.10:57286;branch=z9hG4bK-nprg3gvnk4q1;rport.
  From: mailto:sip:5002 at voip.unisi.it:5060;tag=nyux2omhly.
  To: mailto:sip:5020 at voip.unisi.it;user=phone.
  Call-ID: 3944ec54dc20-pfzjpjhrpm6p.
  CSeq: 2 SUBSCRIBE.
  Max-Forwards: 70.
  Contact: mailto:sip:5002 at 172.20.1.10:57286;reg-id=1.
  Event: dialog.
  Accept: application/dialog-info+xml.
  User-Agent: snom760/8.7.3.25.9.
  Proxy-Authorization: Digest 
  Expires: 3600.
  Content-Length: 0.

  SIP/2.0 200 OK.
  Via: SIP/2.0/UDP 172.20.1.10:57286;received=172.20.1.10;branch=z9hG4bK-nprg3gvnk4q1;rport=57286.
  From: mailto:sip:5002 at voip.unisi.it:5060;tag=nyux2omhly.
  To: mailto:sip:5020 at voip.unisi.it;user=phone;tag=f315b2d58ae8829149b784764c5a40e3-163d.
  Call-ID: 3944ec54dc20-pfzjpjhrpm6p.
  CSeq: 2 SUBSCRIBE.
  Expires: 3600.
  Contact: mailto:sip:presence at voip.unisi.it:5060.
  Server: OpenSIPS (1.11.3-tls (i386/linux)).
  Content-Length: 0.

  NOTIFY sip:5002 at 172.20.1.10:57286 SIP/2.0.
  Via: SIP/2.0/UDP 172.20.1.2:5060;branch=z9hG4bKdb02.83d58916.0.
  To: mailto:sip:5002 at voip.unisi.it;tag=nyux2omhly.
  From: mailto:sip:5020 at voip.unisi.it;tag=f315b2d58ae8829149b784764c5a40e3-163d.
  CSeq: 1 NOTIFY.
  Call-ID: 3944ec54dc20-pfzjpjhrpm6p.
  Max-Forwards: 70.
  Content-Length: 147.
  User-Agent: OpenSIPS (1.11.3-tls (i386/linux)).
  Event: dialog.
  Contact: mailto:sip:presence at voip.unisi.it:5060.
  Subscription-State: active;expires=3600.
  Content-Type: application/dialog-info+xml.
  .
  <?xml version="1.0"?>
  <dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="0" state="full" entity=mailto:sip:5020 at voip.unisi.it/>

  SIP/2.0 200 Ok.
  Via: SIP/2.0/UDP 172.20.1.2:5060;branch=z9hG4bKdb02.83d58916.0.
  From: mailto:sip:5020 at voip.unisi.it;tag=f315b2d58ae8829149b784764c5a40e3-163d.
  To: mailto:sip:5002 at voip.unisi.it;tag=nyux2omhly.
  Call-ID: 3944ec54dc20-pfzjpjhrpm6p.
  CSeq: 1 NOTIFY.
  Content-Length: 0.

  SUBSCRIBE sip:presence at voip.unisi.it:5060 SIP/2.0.
  Via: SIP/2.0/UDP 172.20.1.25:32768;branch=z9hG4bK-lbgnea3kuorq;rport.
  From: mailto:sip:5007 at voip.unisi.it:5060;tag=w8vp9q5iyn.
  To: mailto:sip:5002 at voip.unisi.it;user=phone;tag=f315b2d58ae8829149b784764c5a40e3-29cc.
  Call-ID: 54ec3a578c9e-klgn0s3i32zo.
  CSeq: 75 SUBSCRIBE.
  Max-Forwards: 70.
  Contact: mailto:sip:5007 at 172.20.1.25:32768;reg-id=1.
  Event: dialog.
  Accept: application/dialog-info+xml.
  User-Agent: snom710/8.7.3.25.9.
  Expires: 3600.
  Content-Length: 0.

  SIP/2.0 404 Not here.
  Via: SIP/2.0/UDP 172.20.1.25:32768;received=172.20.1.25;branch=z9hG4bK-lbgnea3kuorq;rport=32768.
  From: mailto:sip:5007 at voip.unisi.it:5060;tag=w8vp9q5iyn.
  To: mailto:sip:5002 at voip.unisi.it;user=phone;tag=f315b2d58ae8829149b784764c5a40e3-29cc.
  Call-ID: 54ec3a578c9e-klgn0s3i32zo.
  CSeq: 75 SUBSCRIBE.
  Server: OpenSIPS (1.11.3-tls (i386/linux)).
  Content-Length: 0.

  NOTIFY sip:5002 at 172.20.1.10:57286 SIP/2.0.
  Via: SIP/2.0/UDP 172.20.1.2:5060;branch=z9hG4bKdbe9.7966c706.0.
  To: mailto:sip:5002 at voip.unisi.it;tag=iklb1qjh1v.
  From: mailto:sip:5007 at voip.unisi.it;tag=f315b2d58ae8829149b784764c5a40e3-b571.
  CSeq: 2 NOTIFY.
  Call-ID: ee35ec54a72b-draf1nwo4qn7.
  Max-Forwards: 70.
  Content-Length: 0.
  User-Agent: OpenSIPS (1.11.3-tls (i386/linux)).
  Event: dialog.
  Contact: mailto:sip:presence at voip.unisi.it:5060.
  Subscription-State: terminated;reason=timeout.

  SIP/2.0 200 Ok.
  Via: SIP/2.0/UDP 172.20.1.2:5060;branch=z9hG4bKdbe9.7966c706.0.
  From: mailto:sip:5007 at voip.unisi.it;tag=f315b2d58ae8829149b784764c5a40e3-b571.
  To: mailto:sip:5002 at voip.unisi.it;tag=iklb1qjh1v.
  Call-ID: ee35ec54a72b-draf1nwo4qn7.
  CSeq: 2 NOTIFY.
  Content-Length: 0.

  The line 5020 was active but no lamp was powered. Also no NOTIFY or other event was sent by Opensips server when i try to call (from another phone) 5020.

  The full opensips.cfg is available here: http://pastebin.com/e6SfbFfq

  Thanks for any help.

  Michele


-- 
Michele Pinassi
Responsabile Telefonia di Ateneo
Servizio Reti, Sistemi e Sicurezza Informatica - Università degli Studi di Siena
tel: 0577.(23)5000 - fax: 0577.(23)2053

Per trovare una soluzione rapida ai tuoi problemi tecnici
consulta le FAQ di Ateneo, http://www.faq.unisi.it 
   

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