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