I forgot to mentionned: Back in the day, I was using 1x PRI-T1 with TBCT and 160 virtual call paths. So I could get 160 concurrent calls for $20.00/month per call path! 5 years later, they stopped selling me this service at this rate, they were afraid of loosing money!
This is how I ended up starting a VoIP service! Stephan Monette Unlimitel Inc. On 2010-01-14, at 6:45 PM, Stephan Monette wrote: > Bruce, > > Bell won't allow you more than 23 calls with RLT. if using another provider, > they too have limits on the amount of channels you can use with RLT. > > I was one of the first business in Canada back in 1999 to use something > similar called TBCT (Two B Channel Transfer) with notification back to > controller (for real time billing) using the Dialogic T1 boards. You have > more chance with TBCT if your provider supports it with 5ESS or NI2 protocol. > > Your PRI-T1 provider needs to enable this option on your D-Channel. According > to Kevin P. Flemming from Digium, Asterisk supports TBCT with librpri 1.4.x. > > I wish I had Asterisk back in 1999! I spent 3 months coding and testing TBCT > by encoding my own special IE structures to handle TBCT! > > The only thing missing is the notification back to controller. This feature > allows the host switch to send a special FACILITY message back to your system > to inform you when the transferred calls are cleared (disconnected). With > this feature, you could still process CDRs with the proper call length. > > Good luck. > > Stephan Monette > Unlimitel Inc. > > On 2010-01-14, at 6:32 PM, Bruce N wrote: > >> >> Thanks that clears up my questions.And my final question, has anyone got RLT >> = Release Line Trunking working on PRI with Asterisk/Sangoma?My >> understanding of RLT is that if an outside number is called and then that is >> flashed or transfered to another outside number then it is as if no B >> channels are in use anymore. Full PRI capacity is still available for the >> call and the two parties are connected outside of the PRI circuit. I >> understand that without RLT two B channels will be used and with RLT no B >> channels will be used after the transfer occurs.Thanks a lot,Bruce >> Date: Thu, 14 Jan 2010 18:23:53 -0500 >> From: [email protected] >> To: [email protected] >> CC: [email protected] >> Subject: Re: [on-asterisk] PRI Configuration Form >> >> >> >> >> >> >> >> >> >> Glare happens when an attempt to access an outgoing channel happens at >> the same time as the carrer presents an incoming call on that channel: >> >> >> >> http://en.wikipedia.org/wiki/Call_collision >> >> >> >> I'm not sure exactly what virtual group refers to, other than that >> there are lots of options possible on a PRI circuit. In general these >> are of limited use. Whatever it is can be controlled by asterisk (for >> example, limiting the number of calls on a particular DID). >> >> >> >> >> >> >> >> >> >> >> >> On 1/14/2010 6:16 PM, Bruce N wrote: >> >> >> Thanks for the input Jim. >> >> >> >> 1- Can you please shed some more light on why use ASEQ and what >> you mean by glare? >> >> >> >> 2- Also what is virtual group option? >> >> >> >> RJ45 is used for Sangoma. And seen a note somewhere that using >> Asterisk can't send CLID/Name with NI-1 so it's definitly NI-2 to go >> with as you said. >> >> >> >> Thanks again, >> Bruce >> >> >>> Date: Thu, 14 Jan 2010 17:59:56 -0500 >> >>> From: [email protected] >> >>> To: [email protected] >> >>> CC: [email protected] >> >>> Subject: Re: [on-asterisk] PRI Configuration Form >> >>> >> >>> DS1 is the same thing as T1, so you would normally need a single >> DS1 >> >>> >> >>> You don't have to get 23 B channels if you don't think you need >> that >> >>> many. There may not be a cost savings, though, so might as well go >> for >> >>> the full 23 unless your rep has other packages available. >> >>> >> >>> 1 D channel is fine. If you were getting a PRI circuit delivered >> over >> >>> multiple T1s, you might want to have backup d-channels, otherwise >> don't >> >>> bother. >> >>> >> >>> Ask for an RJ45. The DB-15 is an older standard, not very common >> anymore >> >>> >> >>> Line Coding - B8ZS/ESF is the standard. No reason to ask for >> anything else >> >>> >> >>> Ascending channel selection. you will select descending in your >> >>> asterisk, and this combination will reduce the chances of glare >> happening. >> >>> >> >>> Digits to outpulse: how many digits do you want to get? I would >> >>> recommend 10, so that you get the full DNIS instead of just the >> last few >> >>> digits >> >>> >> >>> As for NI-2 if you're connecting to Asterisk >> >>> >> >>> Overflow means what do you want them to do with incoming calls if >> your >> >>> D-channel is down or all your circuits are unavailable. It's >> basically a >> >>> phone number. >> >>> >> >>> No digit substitution should be required. You want them to send >> you the >> >>> DID that was dialed. They can send something else, but there's >> really no >> >>> need with Asterisk. >> >>> >> >>> >> >>> >> >>> >> >>> >> >>> On 1/14/2010 5:30 PM, Bruce N wrote: >> >>>> Hi Guys, >> >>>> >> >>>> >> >>>> Trying to fill up a form for an order of a PRI circuit. Will >> be using either of Sangoma A101D or A102D with Asterisk 1.4 or 1.6. Not >> sure about some of the terms and wondering what is supported by the >> mentioned Sangoma cards and what are the disadvantages/advantages of >> using one option over the other: >> >>>> >> >>>> (I have filled out some fields hoping it's right for my needs) >> >>>> >> >>>> # of DS1 Accesses = ? ; Not sure what to put? 24? >> >>>> # of B Channels = 23 ; I guess this is standard for 1 circuit >> >>>> # of D Channels = 1 ; No need to have more than 1 of this >> either >> >>>> Back up D required = y/n ; what is the advantage of having a >> backup D? >> >>>> Line Coding& Framing = B8ZS / ESF ; Which one to pick and >> why? >> >>>> >> >>>> Trunk Selection Sequence = >> Asequential/ASEQ(ascending)/DSEQ(descending)/MIDL(most idle)/LIDL(least >> idle)/CW(clockwise)/CCW(counter clockwise) Using one DID and hunt all >> other numbers. Which to pick? I guess (ascending) >> >>>> >> >>>> Type of interface required at demarc = RJ45/DB15 ; what is >> going to be for Sangoma A101D card? >> >>>> >> >>>> Digits to Outpulse = 0-10 digit ; what is this? >> >>>> ISDN Protocol = NI-1 or NI-2 ; which one to pick and why? >> >>>> >> >>>> Overflow Required = y/n Include D channel failure ; how >> necessary is this specially with D Channel. >> >>>> >> >>>> Hunt Grou = y/n ; obviously YES >> >>>> Virtual Group = y/n ; what is this? >> >>>> Digit Substitution Required = y/n ; what is this? >> >>>> >> >>>> >> >>>> Thanks for answering any or all of the above. >> >>>> >> >>>> -Bruce >> >>>> >> _________________________________________________________________ >> >>>> Say Happy New Year with Messenger for Mobile. >> >>>> http://go.microsoft.com/?linkid=9706117 >> >>>> >> >>> >> >>> -- >> >>> >> >>> -- >> >>> Jim Van Meggelen >> >>> [email protected] >> >>> http://www.oreillynet.com/pub/au/2177 >> >>> >> >>> "A child is the ultimate startup, and I have three. >> >>> This makes me rich." >> >>> Guy Kawasaki >> >>> -- >> >>> >> >> >> >> Spread the cheer with Messenger for mobile. Learn more. >> >> >> -- >> >> -- >> Jim Van Meggelen >> [email protected] >> http://www.oreillynet.com/pub/au/2177 >> >> "A child is the ultimate startup, and I have three. >> This makes me rich." >> Guy Kawasaki >> -- >> >> _________________________________________________________________ >> > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
