Olivier
2008-Dec-01 17:42 UTC
[asterisk-users] Difference between DAHDI/G1/0123456789 and DAHDI/g1/0123456789
Hello, Groups in asterisk are summarized here ( http://www.voip-info.org/wiki/view/Channels+and+Groups). Is there any difference between DAHDI/G1/0123456789 and DAHDI/g1/0123456789 (as I've been advised in another thread, to switch from one notation to the other and I can't see the reason behind that) ? Regards -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20081201/fbcf0983/attachment.htm
Dave Fullerton
2008-Dec-01 17:52 UTC
[asterisk-users] Difference between DAHDI/G1/0123456789 and DAHDI/g1/0123456789
Olivier wrote:> Hello, > > Groups in asterisk are summarized here ( > http://www.voip-info.org/wiki/view/Channels+and+Groups). > Is there any difference between DAHDI/G1/0123456789 and DAHDI/g1/0123456789 > (as I've been advised in another thread, to switch from one notation to the > other and I can't see the reason behind that) ? > > > RegardsAssuming nothing has changed from Zaptel to DAHDI, the difference can found here: http://www.voip-info.org/wiki/view/Asterisk+ZAP+channels Basically, the lowercase g chooses the lowest number available channel from the group where the uppercase G chooses the highest number available channel. This is used to reduce glare on analog or T1 (non-PRI) channels that are part of a hunt group. -Dave
Mark Michelson
2008-Dec-01 18:02 UTC
[asterisk-users] Difference between DAHDI/G1/0123456789 and DAHDI/g1/0123456789
Olivier wrote:> Hello, > > Groups in asterisk are summarized here > (http://www.voip-info.org/wiki/view/Channels+and+Groups). > Is there any difference between DAHDI/G1/0123456789 and > DAHDI/g1/0123456789 (as I've been advised in another thread, to switch > from one notation to the other and I can't see the reason behind that) ? > > > Regards >Using 'g' means that channels will be used starting with the lowest available number and then counting up. Starting with 'G' means to start at the highest channel number and count down. I believe that incoming calls will use the lowest numbered channels first, so if your outgoing calls start with the higher numbers it decreases the chance for "glare" on calls. Mark Michelson
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