Search found 547 matches

by paulej
Thu May 27, 2010 4:35 pm
Forum: Miscellaneous Discussion Topics
Topic: Some general questions about H.323 and SIP
Replies: 15
Views: 21611

Re: Some general questions about H.323 and SIP

My name is Stefan, I'm from Germany and at the moment I'm writing my diploma thesis about VoIP over WLAN / WiFi. While studying some Websites and Books I found out that most people think SIP is best fitting for VoIP. Finally I found this Website and it made me happy to see some arguments form an ot...
by paulej
Sat Mar 27, 2010 12:11 am
Forum: Announcements
Topic: OpenID Support
Replies: 0
Views: 10249

OpenID Support

We've added OpenID support to Packetizer Forums to make it easier to log in and create accounts! If you run your own phpBB board, you might also want to add OpenID Support to your site: http://www.zenorsoft.com/community/viewtopic.php?f=30&t=841 (Please be advised that the software from Zenorsoft us...
by paulej
Sun Mar 14, 2010 2:01 am
Forum: Session Initiation Protocol (SIP)
Topic: SIP is not an emerging protocol
Replies: 8
Views: 12989

SIP is not an emerging protocol

Why is it that after 14 years since the first publication of the SIP Internet Draft is it that people continue to refer to SIP as an "emerging" protocol? 14 years!?!?!

I herewith declare that SIP is NOT am emerging protocol.
by paulej
Wed Jan 06, 2010 5:35 am
Forum: Industry News and Rumors
Topic: Google's phone has arrived
Replies: 1
Views: 11478

Google's phone has arrived

Folks, Some might have been hiding under a rock and missed the announcement earlier: http://www.dailypayload.com/content/3371 This looks like a very impressive device. If you've not had a chance to play with other Android devices, you really ought to visit your local wireless store and do that. I th...
by paulej
Fri Dec 18, 2009 7:56 pm
Forum: T.38 / Fax over IP (FoIP) and V.150-series / Modem over IP (MoIP)
Topic: t38FaxMaxDatagram (H.245)
Replies: 2
Views: 17050

Re: t38FaxMaxDatagram (H.245)

This parameter represents the largest size of the datagram that can be accepted by the receiving device. This does not count RTP headers, for example. There is debate as to whether this counts redundancy, but I think the general consensus is that it does not consider redundancy. So, if a device that...
by paulej
Sat Dec 05, 2009 8:55 pm
Forum: H.323 (Packet-Switched Multimedia Systems)
Topic: Help parsing OLC info in H225 messages
Replies: 4
Views: 9766

Re: Help parsing OLC info in H225 messages

I am sure there is a reason why it was defined that way at the beginning, but I can't say why now. Perhaps it was just to avoid importing types from H.245. Indeed, we did not import types from H.245 until H.323v3. The change you made I suppose tricks the compiler into thinking the type is a differen...
by paulej
Fri Dec 04, 2009 12:33 am
Forum: H.323 (Packet-Switched Multimedia Systems)
Topic: Help parsing OLC info in H225 messages
Replies: 4
Views: 9766

Re: Help parsing OLC info in H225 messages

You are correct that they're fairly easy to parse. The options you have are to just step through the OLC with hand-written code or to use an ASN.1 encoder/decoder. Parsing it by hand is doable, but one has to be careful to watch each bit to ensure that the proper address and port fields are identifi...
by paulej
Sun Nov 22, 2009 7:27 am
Forum: T.38 / Fax over IP (FoIP) and V.150-series / Modem over IP (MoIP)
Topic: SIP Forum T.38 Problem Statement
Replies: 0
Views: 6437

SIP Forum T.38 Problem Statement

Folks,

You might find this interesting:
http://tools.ietf.org/id/draft-jones-si ... ent-00.txt

If fax is of interest to you, perhaps you might want to get involved in the SIP Forum's fax-related work.

Paul
by paulej
Fri Nov 06, 2009 2:25 pm
Forum: H.323 (Packet-Switched Multimedia Systems)
Topic: H.323 version 7 approved
Replies: 0
Views: 6985

H.323 version 7 approved

Folks, The ITU approved H.323 version 7 today, along with new NAT/FW traversal procedures that allow media to flow directly between endpoints, even when endpoints are behind different NAT/FW devices. For more details about what's in v7 and related documents, see: http://www.packetizer.com/ipmc/h323/...