On Mar 15, 2012, at 2:17 PM, Michael Mueller wrote: > STPs in ITU-land are awkward since ITU voice networks are a mesh of E1 with > signaling in the same bundles as the voice > > in ANSI-land, the STP was incorporated and mandated by two large and powerful > monopolies: BC and ATT; signaling became de-coupled from the voice and > traveling in a separate network connected by hierarchy of mated pair STPs > > putting an STP or an STP-like invention in an typical ITU network raises > questions about commercial viability: having a central STP might raise your > E1 charges because they travel over longer distances - this raises monthly > charges in many places; might be cheaper to connect locally - but then you > have increased monthly charges for colo space > > there is conceptual dissonance between STPs and ITU networks - STPs require > the signaling be separate from the voice, and ITU mesh networks are built > around signaling and voice channels traveling in the same bundles of wire > (i've just restated my first 2 paragraphs); decoupling signaling means using > an entire E1 for a single signal channel; this usually causes despair to the > typical ITU ss7 engineer but is business as usual to the ANSI counterpart This is not quite correct. CALA region mostly uses separate E1 for signalling and media when a STP is used. If STP is not required, some telco choose to separate and others don't. As the same as ANSI does. In fact, it's a matter of how the people wants to make it work.
> the cheapest STP I know of is the PT Segway; maybe you can get a Tekelec > Eagle; I'm not aware of any Linux based DIY STPs; ss7box started as an STP > but evolved away from the function as there was little need for a low-end STP > in ANSI-land and zero need for it in ITU-land > > ss7box supports Asterisk box clustering around a single point code with CIC > routing; clustering might be something you want to investigate - you'd have > to examine the technical, commercial, and incumbent connection policies to > see if it would help you build an IP voice network with fewer connections to > the incumbent telco network using such a clustering function > > you asked a complicated question, or I've turned a simple question into a > complicated one - both are plausible > > On Thu, Mar 15, 2012 at 11:45 AM, Rodrigo Ricardo Passos > <[email protected]> wrote: > Michael, > > Can you explain more? > Here, in Brazil, the standard is ITU. I think it isn´t possible because ITU > is used in all telcos. > > > Em 15/03/2012 12:25, Michael Mueller escreveu: >> connecting a mated pair of STPs to an ANSI network as a peer has more >> requirements than connecting an SSP; ITU STP are less common so connection >> requirements might be more variable >> >> On Thu, Mar 15, 2012 at 10:19 AM, Rodrigo Ricardo Passos >> <[email protected]> wrote: >> Gustavo, >> >> Do you know Yate? Knows if Yate can be used in place of asterisk? >> I know that this list is about Asterisk SS7, but I think that this question >> doesn´t bad. >> >> Regards, >> >> Rodrigo >> >> Em 14/03/2012 16:55, Gustavo Mársico escreveu: >>> >>> There is no pure STP implementation on libss7 or chan_ss7. Modules cannot >>> send TFA, TFP, support STP timers, etc. Today, all you can do is routing >>> based in the extensions, but that's not STP function. >>> However, I know that some efforts were made on libss7 and the last time I >>> checked looked promising. I'll try to find what's going on there. >>> >>> Regards >>> >>> Gustavo >>> >>> >>> On Mar 14, 2012, at 4:39 PM, Rodrigo Ricardo Passos wrote: >>> >>>> Hi all, >>>> >>>> I have a question of how can I create STPs Boxes with Asterisk in my >>>> network? >>>> >>>> My project includes a creation of network with asterisk SPs and STPs and >>>> my initial idea is a implementation of these boxes using TDMoE. So, create >>>> two boxes like STP e another’s boxes like SP. >>>> >>>> All signalization will pass to both STPs. Anyone knows if my scenario will >>>> be one scenario with a real STP boxes or this will never STP ambient? >>>> >>>> Other question is, if this last question is false, how can I create this >>>> ambient with asterisk? >>>> >>>> >>>> Best Regards, >>>> Rodrigo >>>> >>>> >>>> -- >>>> _____________________________________________________________________ >>>> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >>>> >>>> asterisk-ss7 mailing list >>>> To UNSUBSCRIBE or update options visit: >>>> http://lists.digium.com/mailman/listinfo/asterisk-ss7 >>> >>> >>> >>> -- >>> _____________________________________________________________________ >>> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >>> >>> asterisk-ss7 mailing list >>> To UNSUBSCRIBE or update options visit: >>> http://lists.digium.com/mailman/listinfo/asterisk-ss7 >> >> -- >> _____________________________________________________________________ >> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> >> asterisk-ss7 mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-ss7 >> >> >> >> -- >> _____________________________________________________________________ >> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> >> asterisk-ss7 mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-ss7 > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-ss7 mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-ss7 > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-ss7 mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-ss7
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