RE: [Asterisk-Users] Dialogic supported well?
Good luck - call the guys at Digium (Malcolm or Greg) - they are very helpful Can I have email ID and phone number of Malcolm or Greg ? Im from INDIA, unfortunately DIGIUM doesn't have any resellers here. So I think i've to call up Australia. Its good that now I know two names there. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Alfred Werner Sent: Friday, March 05, 2004 5:05 PM To: [EMAIL PROTECTED] Subject: [Asterisk-Users] Dialogic supported well? I'm new to asterisk and quite impressed by the feature list. I have a D/4PCI already in hand. Is there any reason NOT to use this and buy a digium card instead? I basically want to set up a couple line analog system to check it out and probably use as a a Soho setup for VM, access to a postgres database, and to play with the VOIP stuff. TIA, Alfred Werner ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Dialogic supported well?
Hi- Malcolm and Greg are at Digium in the USA (sales/marketing I think): Put an @ between the following words - trying to foil the email address crawlers: Malcolm is malcolmd digium.com Greg is gvance digium.com Scott M. Stingel Emerging Voice Technology Inc. Email: scott at evtmedia.com URL:www.evtmedia.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anand S. Katti Sent: Saturday, March 06, 2004 5:26 PM To: [EMAIL PROTECTED] Subject: RE: [Asterisk-Users] Dialogic supported well? Good luck - call the guys at Digium (Malcolm or Greg) - they are very helpful Can I have email ID and phone number of Malcolm or Greg ? Im from INDIA, unfortunately DIGIUM doesn't have any resellers here. So I think i've to call up Australia. Its good that now I know two names there. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Alfred Werner Sent: Friday, March 05, 2004 5:05 PM To: [EMAIL PROTECTED] Subject: [Asterisk-Users] Dialogic supported well? I'm new to asterisk and quite impressed by the feature list. I have a D/4PCI already in hand. Is there any reason NOT to use this and buy a digium card instead? I basically want to set up a couple line analog system to check it out and probably use as a a Soho setup for VM, access to a postgres database, and to play with the VOIP stuff. TIA, Alfred Werner ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Dialogic supported well?
Hi Steve- Actually, there isn't that much processing power on the Dialogic boards. You're right, but they were not really intended for full duplex transcoding as you mention. I think the horsepower they had was plenty for typical IVR apps however. If memory serves, the D600 (2 E1's) has something like 12 processors, I think 8 are Motorola 56002 DSP's. I guess all I was trying to say is that transitioning from a dialogic-based system to a Digium is not always necessarily smooth. I was surprised to find out that even simple IVR apps under asterisk started hicupping when over about 60-80 channels were running - and all they were doing was speaking short prompts and detecting DTMF's. Admittedly these are busy systems (lots and lots of new calls over short time periods), but I've built Dialogic-based systems in the past for almost identical app's - and they were able to handle 2 to 3 times this many channels on a much slower central processor. I do have a feeling that more attention directed toward making the digium PRI drivers more robust would perhaps increase the potential load they could handle. Another programmer and I were poking around and it seemed that some errors were not handled properly, specifically framer underrun errors. This is a condition that might pop up from time to time in even the most carefully designed system. (have discussed this possible problem with Mark) Again, all of this intended as constructive commentary and hopefully helpful to someone. Best regards, Scott M. Stingel Emerging Voice Technology Inc. Palo Alto, California and London, England Email: scott at evtmedia.com URL:www.evtmedia.com ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[Asterisk-Users] Dialogic supported well?
I'm new to asterisk and quite impressed by the feature list. I have a D/4PCI already in hand. Is there any reason NOT to use this and buy a digium card instead? I basically want to set up a couple line analog system to check it out and probably use as a a Soho setup for VM, access to a postgres database, and to play with the VOIP stuff. TIA, Alfred Werner ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Dialogic supported well?
Alfred, I am in similar position. I took the route of going with Digium boards for two primary reasons - they have excellent quality and offer the best in customer and technical support. I am starting with an X100P just for testing everything out (using IAXClient and Asterisk). We have two Network Operation Centers - one running a T-3 and the other an OC-3. We are looking to add VoIP and PABX solutions to our product line. Once we can gain a better understanding with Asterisk and the Digium card, we are upgrading to a TE405 with PRI (4 lines). Digium is extremely knowledgeable and continues to provide us with valuable information. Good luck - call the guys at Digium (Malcolm or Greg) - they are very helpful kaydon -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Alfred Werner Sent: Friday, March 05, 2004 5:05 PM To: [EMAIL PROTECTED] Subject: [Asterisk-Users] Dialogic supported well? I'm new to asterisk and quite impressed by the feature list. I have a D/4PCI already in hand. Is there any reason NOT to use this and buy a digium card instead? I basically want to set up a couple line analog system to check it out and probably use as a a Soho setup for VM, access to a postgres database, and to play with the VOIP stuff. TIA, Alfred Werner ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Dialogic supported well?
Hi Alfred- I'd like to echo Kaydon's very positive comments regarding asterisk and Digium with one or two caveats. I've had lots of experience building systems with Dialogic boards (analog and E1), and more recently a few systems built with Digium's quad E1 boards (the E400P and now the TE410P), so I've had a chance to compare them under similar application load, especially high-volume IVR and also calling card apps. If you'll be running commercial apps, I would recommend that you do a lot of testing, especially load testing, with the types of applications you'll be running. Dialogic boards, although incredibly expensive, do have lots of horsepower built in for the purposes of encoding and decoding the voice streams, decoding single and DTMF codes, voice energy and cadence detection, etc. Digium boards rely 100% on the processor that they run in to perform these functions. I was a little disappointed to find that I can (so far) reliably only handle 4 E1's in a (very) high-volume IVR app. In the past I've run Dialogic-based systems which handled much more load (but also which cost 4 times as much in hardware!) Although Digium's newer TE410P board is capable of bus mastering, I found that it made little difference in the number of channels I could run. So, I guess my point is not to be over-optimistic in deciding the number of channels that you can run. Processors are relatively cheap these days, so when in doubt, opt for more processors and spread the load! I also agree that Digium's support has been great. I do wish they would spend more time in two areas: (a) doing some documentation for the boards they sell - even a one-page setup sheet would be nice (the TE410 boards arrive with nothing, not even an explanation of what the jumpers/switches on the board do)! (b) improving the an apparent bug or shortcoming in the PRI driver code, which results in framing errors not being dealt with properly. This really only effects very high volume systems, but it needs attention. (I've discussed these with Mark) Anyway, I don't want to dissuade you from choosing Digium and asterisk, they are super accomplishments, just want you to manage your expectations a bit. Test, test, test! Good luck in your projects Scott Stingel President Emerging Voice Technology Inc. Email: scott at evtmedia.com URL:www.evtmedia.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kaydon Stanzione Sent: Friday, March 05, 2004 10:31 PM To: [EMAIL PROTECTED] Subject: RE: [Asterisk-Users] Dialogic supported well? Alfred, I am in similar position. I took the route of going with Digium boards for two primary reasons - they have excellent quality and offer the best in customer and technical support. I am starting with an X100P just for testing everything out (using IAXClient and Asterisk). We have two Network Operation Centers - one running a T-3 and the other an OC-3. We are looking to add VoIP and PABX solutions to our product line. Once we can gain a better understanding with Asterisk and the Digium card, we are upgrading to a TE405 with PRI (4 lines). Digium is extremely knowledgeable and continues to provide us with valuable information. Good luck - call the guys at Digium (Malcolm or Greg) - they are very helpful kaydon -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Alfred Werner Sent: Friday, March 05, 2004 5:05 PM To: [EMAIL PROTECTED] Subject: [Asterisk-Users] Dialogic supported well? I'm new to asterisk and quite impressed by the feature list. I have a D/4PCI already in hand. Is there any reason NOT to use this and buy a digium card instead? I basically want to set up a couple line analog system to check it out and probably use as a a Soho setup for VM, access to a postgres database, and to play with the VOIP stuff. TIA, Alfred Werner ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Dialogic supported well?
Scott Stingel wrote: If you'll be running commercial apps, I would recommend that you do a lot of testing, especially load testing, with the types of applications you'll be running. Dialogic boards, although incredibly expensive, do have lots of horsepower built in for the purposes of encoding and decoding the voice streams, decoding single and DTMF codes, voice energy and cadence detection, etc. Digium boards rely 100% on the processor that they run in to perform these functions. I was a little disappointed to find that I can (so far) reliably only handle 4 E1's in a (very) high-volume IVR app. In the past I've run Dialogic-based systems which handled much more load (but also which cost 4 times as much in hardware!) Although Digium's newer TE410P board is capable of bus mastering, I found that it made little difference in the number of channels I could run. Actually, there isn't that much processing power on the Dialogic boards. They have rather limited DSP and MCU resources. That is why they only handle codecs of trivial complexity. The reason they get better high load results for IVRs is they have huge latency, which helps enormously with the response times the applications level code needs to achieve. Such high latency kills phone calls, but nobody notices for IVR use. Most Dialogic cards are incapable of doing anything other than IVR or call switching through their mezzanine buses, as they are not full duplex. Even so, the throughput you can achieve in pure IVR applications is not that great. When you hear of people with a large bunch of T1s or E1s into a Dialogic box, it is normally some limited IVR work plus a lot of call switching. That call switched data passes across the mezzanine bus, and has no impact on the main processor. Some of the JCT cards from Dialogic can be set to a lower latency, and are full duplex. This is aimed at TTS + ASR use, rather than VoIP calls. The lowest latency is still much higher than the Digium cards, but even with this the number of channels you can handle reliably is a lot lower than when you use the traditional high latency Dialogic modes. Dialogic support was great 10 years ago, but is now almost non-existant. Their drivers are buggy, and not keeping up with the times. Their previously active forums seem to be in serious decline. Most of their long term customers find it hard to say nice things about them. They are expensive. On the other hand, they do have broad approvals across the globe. I think that is their biggest asset. Regards, Steve ___ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
