Norbert Zawodsky wrote:
<quote> ... (Well, almost. Extensions must be shorter than 80 characters long, and you shouldn’t use single-character extensions for your own use, as they’re reserved.) ... </quote>O.k. - This answers my first question ("if there is disadvantage if we use only 1 digit extensions"). But what for are single-character extensions "reserved" ?
As others have mentioned the single "character" extensions are reserved for special extensions in the dialplan, i.e. 's' for start, 't' for timeout, 'i' for invalid, etc.
However, the single "digit" extensions are not reserved, so you can use them if you want. The only problem with using single digit extensions is the reduced flexibility in your dialplan, i.e. things like: 1) no room to expand your number of extensions without having a mix of 1 digit and 2 (or more) digit extensions, 2) having to have a prefix number for dialing an external number, etc.
Of course, if you don't have a dialout digit (e.g. '9') then you have limited flexibility also. Since I don't have a dialout digit and I allow both 7 digit (NXXXXXX) and 11 digit (1NXXNXXXXXX) dialing, I don't have that many options for extensions either (they either have to start with 10, 11 or 0). Right now I'm using three digit extensions starting with 10 and 11 (i.e. 10X and 11X) but I am running out, and am thinking of moving to three digit extensions starting with 0 (i.e. 0XX, except 011 would still work for international dialing). I don't have any use for just 0, since I don't even know what dialing an operator should mean in the context of a mixed PSTN and multi provider VOIP setup (not to mention I haven't called an operator of any type in over 20 years).
John _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
