Any good reference on VoIP using H323? Thanks, Rod Dossouvi Sr Network Engineer INDUS Corporation FHWA, USDOT 1200 New Jersey Avenue South East Washington, DC 20590 Direct 202-366-9028 Mobile 240-422-4588
The O'Reilly book I recommended treats of H.323 somewhat. Rod.Dossouvi.CTR at dot.gov wrote:
Any good reference on VoIP using H323?
Thanks, Rod Dossouvi Sr Network Engineer INDUS Corporation FHWA, USDOT 1200 New Jersey Avenue South East Washington, DC 20590 Direct 202-366-9028 Mobile 240-422-4588 _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops
-- Alex Balashov - Principal Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671
<tin hat>H.323 is dying, though, I'd safely ignore it if you're looking to school yourself on VoIP more or less from scratch. </tin hat> Rod.Dossouvi.CTR at dot.gov wrote:
Any good reference on VoIP using H323?
Thanks, Rod Dossouvi Sr Network Engineer INDUS Corporation FHWA, USDOT 1200 New Jersey Avenue South East Washington, DC 20590 Direct 202-366-9028 Mobile 240-422-4588 _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops
-- Alex Balashov - Principal Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671
"IP Telephony" by Hersent, &al., covers H.323 in some depth. He also covers SIP and MGCP. http://books.google.com/books?id=gC0U-nDGvvsC Hersent seems to be an H.323 elitist. I get the feeling he really wants to say, "You SIP users are silly children, with your skulls of IETF mush, as if you can re-invent telephony! I spit on your silly extensibility and lack of respect for the great and wise ITU-T fathers." Despite that, it's quite a useful book. On Aug 19, 2009, at 12:23 PM, <Rod.Dossouvi.CTR at dot.gov> wrote:
Any good reference on VoIP using H323?
Thanks, Rod Dossouvi Sr Network Engineer INDUS Corporation FHWA, USDOT 1200 New Jersey Avenue South East Washington, DC 20590 Direct 202-366-9028 Mobile 240-422-4588 _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops
mark r lindsey at e-c-group.com http://e-c-group.com/~lindsey +12293160013
Mark R Lindsey wrote:
"IP Telephony" by Hersent, &al., covers H.323 in some depth. He also covers SIP and MGCP. http://books.google.com/books?id=gC0U-nDGvvsC
Hersent seems to be an H.323 elitist. I get the feeling he really wants to say, "You SIP users are silly children, with your skulls of IETF mush, as if you can re-invent telephony! I spit on your silly extensibility and lack of respect for the great and wise ITU-T fathers."
Despite that, it's quite a useful book.
:) I can understand that perspective, seeing as H.323 was derived explicitly with the goal of being used for telephony signaling and interoperating with telephony systems. SIP comes from an IP/packet design heritage and no intentions of that sort inhere expressly in its conceptual fabric. Having to graft a bunch of old-world stuff onto SIP has definitely created its share of problems and ballooning complexity, although there are other reasons too why it has so many applicable standards documents (lack of strong de facto reference implementation leadership early on, etc.). Nevertheless, the H.323 elitism stance is way out of touch with reality. It's like grumpy Bellheads who insist on building LEC transport cores entirely out of TDM, 'cause this newfangled VoIP stuff is immature and, besides, everyone knows IP networks can't be trusted. Have fun with that. -- Alex Balashov - Principal Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671
I guess this review on Amazon sums it up.. Good text -- but missing important features, September 20, 2005 By Mark R. Lindsey (Valdosta, GA, USA) - See all my reviews (REAL NAME) This is a well-written text; it compiles a lot of good information on important issues. I enjoy reading it, because there is a lot of info on things I don't understand. For example, it has an introductory description of how faxing works, then touches on how T.38 works with that approach. There's also some information on what you'll usually see in equipment, and about movements afoot that aren't quite widespread as yet -- e.g., ENUM lookups for routing calls. The author sprinkles in his opinions and technical/aesthetic tastes, however. While it's very informative, some sections read like opinion from a magazine like MacWorld. For example, the authors praise H.323 for its greatness, but criticize SIP for being as a bunch of vendor hacks. But it's missing some key features -- like a useful index (it has one of those sparse six-page indexes for a 380-page book), or even a bibliography! The lack of a bibliography is particularly offensive. For example, the authors claim that "95% of VoIP minutes worldwide" are controlled with H.323, but provides no basis for that claim. On Aug 19, 2009, at 10:59 AM, Mark R Lindsey wrote:
"IP Telephony" by Hersent, &al., covers H.323 in some depth. He also covers SIP and MGCP. http://books.google.com/books?id=gC0U-nDGvvsC
Hersent seems to be an H.323 elitist. I get the feeling he really wants to say, "You SIP users are silly children, with your skulls of IETF mush, as if you can re-invent telephony! I spit on your silly extensibility and lack of respect for the great and wise ITU-T fathers."
Despite that, it's quite a useful book.
On Aug 19, 2009, at 12:23 PM, <Rod.Dossouvi.CTR at dot.gov> wrote:
Any good reference on VoIP using H323?
Thanks, Rod Dossouvi Sr Network Engineer INDUS Corporation FHWA, USDOT 1200 New Jersey Avenue South East Washington, DC 20590 Direct 202-366-9028 Mobile 240-422-4588 _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops
mark r lindsey at e-c-group.com http://e-c-group.com/~lindsey +12293160013
_______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops
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Rod.Dossouvi.CTR＠dot.gov