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11-07-2008, 01:32 AM | #4 | |||
Join Date: Mar 2006
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Quote:
Edit/Addition: If you read the info on the ISN/ITED site, they actually talk about setting up your PBX using a "trunk code" before dialing. They suggested 012, which is probably why SIP Broker (which starts all of their codes with the *-key) chose to use the "SIP Code" (SIP Broker's equivalent of a PBX "Trunk Code") of *012 for accessing their service. Quote:
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And since the "extension" tends to always be the "variable" part (because it depends upon how each service/provider chooses to setup their numbering/dialing scheme), you can't count on it being exactly 4 digits before the *-key. Which I think means that the only practical way to handle ISN dialing (from within VoXaLot), is to use some "prefix" (similar to what ISN docs call the "Truck Code") that you have to dial to force the call to use ISN routing. But if you are going to dial a prefix anyway, why not just use the existing SIP Broker prefix *012, resulting in just normal SIP Broker dialing for this "provider" (which, like SIP Broker, is really a gateway service to other providers)? NOTE: If you only have a few "numbers" you call via the ISN/ITAD service, you could easily set them up as "speed dials" in VoXaLot. However, for general purpose use of that service, I would think the simplest way would be just to directly do the SIP Broker *012 code before the normal ISN/ITAD extension*service dialing. Edit/Addition: The ISN/ITAD service ( ISN Trial Home Page ) is really a pretty interesting service. And in many ways it is trying to do the same thing "SIP Broker" is doing (albeit with a different "standard" for how you dial). And while their provider list ( http://www.iana.org/assignments/trip-parameters/ ) has some overlap with SIP Broker's List ( SIPBroker - Provider White Pages ) there are a number of providers (including some major Universities) that are available as free calls on their list but not directly on SIP Broker's list (but you can still use SIP Broker code *012 to indirectly route to an ISN/ITAD proxy, and thereby call numbers reachable via ISN/ITAD). OTOH one problem I find with ISN/ITAD isn't the service per se, it's that lack of info on the providers. If you look over the provider list for their service, they don't provide any web links to a page describing what the "extensions" look like for any given ISN provider. So unless you already happen to know how say MIT maps their "extensions" into dial-in numbers (for example, do they use the last 5 digits of the POTS number, as some Universities do?), how would you even know what "extension" to dial via ISN/ITAD to reach the proper person/department at that University? i.e. it would really be helpful if the ISN/ITAD list also had a link (for each provider) identifying how you dial to the provider. NOTE: The *012 SIP Broker code has (as of the time of this writing) a red x by it. Normally this would mean that the provider is blocking inbound calls. However, in this case it appears to be a "false alarm" as the the *012 really does work (I just tested it). i.e. You really can do ISN dialing (via SIP Broker, or VoXaLot) by just dialing: *012 extension * ITAD (where "extension" is the "number" at that location, and ITAD is their ITAD provider number). Last edited by DracoFelis; 11-07-2008 at 03:56 AM. Reason: Added additional info: |
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