[SIP SIMPLE client] SIPclient Digest, Vol 24, Issue 5

Alexander Dokovski aldors at es.aau.dk
Thu May 5 15:24:49 CEST 2011


On 2011-05-05 12:00, sipclient-request at lists.ag-projects.com wrote:
> Send SIPclient mailing list submissions to
> 	sipclient at lists.ag-projects.com
>
> To subscribe or unsubscribe via the World Wide Web, visit
> 	http://lists.ag-projects.com/mailman/listinfo/sipclient
> or, via email, send a message with subject or body 'help' to
> 	sipclient-request at lists.ag-projects.com
>
> You can reach the person managing the list at
> 	sipclient-owner at lists.ag-projects.com
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of SIPclient digest..."
>
>
> Today's Topics:
>
>     1. Question about dropping communication (Alexander Dokovski)
>     2. Re: Question about dropping communication (Sa?l Ibarra Corretg?)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 04 May 2011 22:59:39 +0200
> From: Alexander Dokovski<aldors at es.aau.dk>
> To: sipclient at lists.ag-projects.com
> Subject: [SIP SIMPLE client] Question about dropping communication
> Message-ID:<4DC1BE3B.7020808 at es.aau.dk>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Hi,
>
> I developing a small application including Subscription - Notify
> process. I test my application  how it handle at different packet error
> rate. I observe that at low packet error rate i have a perfect
> connection and I don't have any problems, but at  high PER i get a talk
> drop and I cannot understand from where the error comes from. At the
> middle of the talk I receive a Notify message with subscription
> terminated but with '0' as error code which as I read in the sipcore
> development guide refers to some internal error of the sip core. Is it
> possible to  help me ?
> To simulate packet error rate I use dummynet
>
> this is a paste of the pjsip_log with occurence of the problem
>
> http://pastebin.com/N1pBjmv9
>
> Regards,
> Alexander Dokovski
>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 05 May 2011 09:51:48 +0200
> From: Sa?l Ibarra Corretg?<saul at ag-projects.com>
> To: sipclient at lists.ag-projects.com
> Subject: Re: [SIP SIMPLE client] Question about dropping communication
> Message-ID:<4DC25714.8040608 at ag-projects.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> On 05/04/2011 10:59 PM, Alexander Dokovski wrote:
>> Hi,
>>
>> I developing a small application including Subscription - Notify
>> process. I test my application how it handle at different packet error
>> rate. I observe that at low packet error rate i have a perfect
>> connection and I don't have any problems, but at high PER i get a talk
>> drop and I cannot understand from where the error comes from. At the
>> middle of the talk I receive a Notify message with subscription
>> terminated but with '0' as error code which as I read in the sipcore
>> development guide refers to some internal error of the sip core. Is it
>> possible to help me ?
>> To simulate packet error rate I use dummynet
>>
>> this is a paste of the pjsip_log with occurence of the problem
>>
>> http://pastebin.com/N1pBjmv9
>>
> Can you provide a SIP trace and a more detailed description of what you
> are trying to achieve? What are you subscribing to?
>
Hi,
My application is separated on two nodes one Registering to the second 
Node and pushing data to it, and a second node is listening for 
registration when it receives the registration it send subscribe to the 
first node in order to receive some data. The subscribe event that I'm 
using is message-summary.

|--------Register------>|
|<------200/OK---------|
|<-----Subscribe-------|
|-------200/OK-------->|
|------Notify(beg)---->|
|<------200/OK---------|
|------Notify(data)--->|
|<------200/OK---------|
|------Notify(data)--->|
|<------200/OK---------|
|------Notify(data)--->|
|<------200/OK---------|
|------Notify(data)--->|

The Body of the Notify Data includes some positioning information as a 
text/plain.
The two files with the sip logs are in the link :
http://kom.aau.dk/~aldors/

The log  is made with the one implemented in the sylkserver library





More information about the SIPclient mailing list