2009/6/12 Miguel Molina <[email protected]>: > Oguzhan Kayhan escribió: >> I mean..making a single trunk between a pstn or telco with 2 or more PRI's.. >> I mean instead of using 32 channels to use 64 or more.. >> >> I am trying to increase the capacity between my PSTN and asterisk actually. >> There will be more than 35-40 concurrent calls so while creating a zap >> trunk(or dahdi..whatever u call) i want all pris to behave like they are >> a single span >> I hope i make myself clear now :) >> sorry for misunderstanding. >> >> > Just put all channels of all spans you want on the same group (look at > this example snip of zapata.conf): > > group=1 > signalling = pri_cpe > context=4pri > channel => 1-15 > channel => 17-31 > > channel => 32-46 > channel => 48-62 > > channel => 63-77 > channel => 79-93 > > channel => 94-108 > channel => 110-124 > > That way asterisk will use the 120 channels as one big trunk on g1. if > you Dial(Zap/g1/number), it will use all the channels. If you want to do > round-robin so it goes around all channels and not the first free, try > Dial(Zap/r1/number) from incrementing round-robin, or > Dial(Zap/R1/number) to decrementing round-robin. > > Of course, depending on your need you can split them off on the arrange > you want, not only at a entire PRI level. If you wanted to reserve 5 > channels to inbound calls only and the rest for outbound, you could do > this for example: > > group=1 > signalling = pri_cpe > context=outbound-group > > channel => 6-15 > channel => 17-31 > > channel => 32-46 > channel => 48-62 > > channel => 63-77 > channel => 79-93 > > channel => 94-108 > channel => 110-124 > > group=7 > signalling = pri_cpe > context=inbound-group > channel => 1-5 > > This way, if you Dial group 1, you won't use channels 1-5, leaving them > free for inbound calls. > > Cheers, > > Ing. Miguel Molina > Grupo de Tecnología > Millenium Phone Center > >
You can also gain 3 voice channels and potentially save money by using NFAS which Asterisk supports beautifully. In one instance, I was able to save $2,100 month by using seven D chans on a T3 (DS3) rather than twenty eight. GXing wanted $100/mo per D chan. -- Thanks, Steve Totaro +18887771888 (Toll Free) +12409381212 (Cell) +12024369784 (Skype)
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