[asterisk-users] does res_pjsip support ZRTP?

Joshua Colp jcolp at digium.com
Tue Oct 6 10:27:35 CDT 2015

Dmitriy Serov wrote:


>>> - found hardphones and software phones that don't accept "long nonce"
>>> and refuse to register when using res_pjsip
>> Have you filed an issue with this and details about the
>> hardphones+softphones?
> Welltech WP589. Beautifully registered using chan_sip and res_pjsip not
> logged in.
> Analyzing the exchange of SIP packets I found a single difference: the
> format of the "nonce" field. When using a longer nonce (pjsip) this
> phone simply does not respond to the request packet authorization (as do
> many hardware and software encountering something incomprehensible).
> The same behavior was on the built-in nokia 95 SIP client.

I haven't heard of this or seen it in testing, I don't think an issue 
exists for it.

>>> - enable icesupport also leads to problems of registration and cannot be
>>> "common solution"
>> icesupport is only applied to calls, what happens for registration?
> Sorry. Not registration, but INVITE.
> The client software encounters an unfamiliar SDP headers and simply not
> responding to SIP packets.
> The specifics of my service is that I don't know what SIP client is on
> the other side. What it supports and what not.
> To give to configure to a user - not the best idea, because often they
> do not understand what they onoff and why stops working.

I'm not sure there's anything that could be done here...

>>> - issue tracker now contains multiple error messages that arise every
>>> day and reboot my server (which cannot be called a production)
>>> - And watchdog logs SegFaults and Hangs including other stacks that are
>>> not yet documented in the issue tracker.
>> Have you filed any issues for these with information? We can't make
>> PJSIP better if we don't know about the problems people are having
>> like this.
> Some of not fixed:
> https://issues.asterisk.org/jira/browse/ASTERISK-25439
> https://issues.asterisk.org/jira/browse/ASTERISK-25435
> https://issues.asterisk.org/jira/browse/ASTERISK-25421
> https://issues.asterisk.org/jira/browse/ASTERISK-25378
> https://issues.asterisk.org/jira/browse/ASTERISK-25279

They're in the queue then.

Joshua Colp
Digium, Inc. | Senior Software Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - US
Check us out at: www.digium.com & www.asterisk.org

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