Is there any RFC about authentication-info: nextounce?
Jing Jiang , PhD * Embedded Software Engineer
Biamp Systems * 9300 SW Gemini Drive, Beaverton, OR 97008
www.biamp.com<http://www.biamp.com/> * tel. +1.503.641.7287 * direct
+1.503.718.9238 * fax +1.503.62
,
Jing Jiang , PhD * Embedded Software Engineer
Biamp Systems * 9300 SW Gemini Drive, Beaverton, OR 97008
www.biamp.com<http://www.biamp.com/> * tel. +1.503.641.7287 * direct
+1.503.718.9238 * fax +1.503.62
Recently, we saw a case that a server (Asterisk) sent our client an
authentication-info header in its "bye" message, but our SIP device is just a
client and never challenges the server. Our client doesn't expect this header
so the "bye" request was declined.
What is the right behavior for the
IPv6 includes IPSEC feature which provides transport layer security. In SIP
implementation in IPv4, we need to implement TLS for TCP and DTLS for UDP to
provide communication security. We also need to implement SRTP to protect
media. For SIP or RTP in IPv6, should we just rely on IPSEC
IPv6 includes IPSEC feature which provides transport layer security. In SIP
implementation in IPv4, we need to implement TLS for TCP and DTLS for UDP to
provide communication security. We also need to implent SRTP to protect media.
For SIP or RTP in IPv6, should we just rely on IPSEC provided
I am trying to find out RFCs about rinstance in contact header. Does anyone
know about those RFCs.
Thanks,
Jing
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We ran into the issue a few times. We sent out invite message to a PSTN
number. However, we didn't receive 180 or 183, but 200 ok. We know the media
gateway would like to start the media immediately for transmitting call
progress tone. Is it a valid call sequence?
Thanks,
Jing
When a SIP endpoint reboots, it will come to use the same initial sequence
number to register with the proxy again. The proxy will complain it with out of
sequence error. After timeout, the proxy will start to accept this registration
again. How should I resolve this?
Thanks,
Jing
An endpoint receives an invite including audio and video offer, but the
endpoint has no video capability. How does the endpoint respond this offer? It
seems to me there is a RFC to talk about it, but I just could find it. RFC 6337
talks about behavior on receiving SDP with c=0.0.0.0. Is it the
Is there any phone supporting codec 719?
Thanks,
Jing
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