Thanks a lot for sharing the experience and giving me the insight to this.
What was the real life usage/application of 160 paths? I am not understanding the 1x PRI and 160 paths part. I have used TBCT with Rogers on analogue lines and I am assuming it's the same as what you have experienced on PRI. I never tested the limits of TBCT on Rogers lines. However, I am wondering if the concept of RLT is the same as TBCT when it comes to libpri support (is it supported even if limited to 23 channels). I see some reference to rlt term in libpri trunk in archives from even 2006. But there is no specific documenation to this. Seems like a really unpopular or maybe sophisticated feature for Asterisk. I probably wouldn't worry about the CDR but again that is a definite bonus if possible with RLT. I suppose today's RLT on PRI don't support that?! Also, would anyone know the dialplan command for RLT/TBCT on asterisk? Would it be the old Flash() even for PRI/libpri? Thanks, Bruce > CC: [email protected]; [email protected] > From: [email protected] > Date: Thu, 14 Jan 2010 18:51:44 -0500 > To: [email protected] > Subject: Re: [on-asterisk] PRI Configuration Form > > 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] > _________________________________________________________________
