not many service providers support SIP yet ... SIP is future<br><br>
<div class="gmail_quote">On Jan 22, 2008 5:31 PM, <<a href="mailto:keli@carocomp.ro">keli@carocomp.ro</a>> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Although I must admit I probably don't understand this question (SIP<br>for PSTN? Isn't that a contradiction in terms? :P ) my two cents (if
<br>we're talking about SIP as in VoIP protocol):<br><br>You're free from quite a lot of expensive hardware (no gateway, no<br>E1/T1 card, no DSPs) and also, even a *lot* of bandwidth can be<br>cheaper that the monthly rates of an E1 PRI (well, at least this seems
<br>to be the case around here). Adding new PRI lines adds to costs almost<br>in a linear fashion (hardware has to be bought for each line just as<br>well), while bandwidth comes at significant discounts in large<br>quantities.
<br><br>Though that's just my theory, since I myself don't really see this<br>"trend" happening much. So far PRI is way more reliable as a<br>technology to be easily replaced by SIP trunks... (again, this is just
<br>my point of view, my circumstances etc.)<br><br>Zoltan<br><br>Quoting Lelio Fulgenzi <<a href="mailto:lelio@uoguelph.ca">lelio@uoguelph.ca</a>>:<br><br>> Is there a fundamental reason users are going from PRI to SIP for
<br>> the PSTN connections? Is there a cost savings realized somewhere -<br>> either hard or soft?<br>><br>> I wouldn't mind hearing from the group.<br>><br>> Lelio<br>> --------------------------------------------------------------------------------
<br>> Lelio Fulgenzi, B.A.<br>> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1<br>> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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