I can't speak to the ami/sf specifically, but our b8zs/esf lines show a connect speed of about 2 kbits/sec slower than our PRI's. This difference is pretty consistent across every time I make the comparison. We haven't noticed any difference in the stability of the connection though. PRI's are very expensive here so we cannot afford them on all of our lines, only those doing ISDN. Mark Thornton San Marcos Internet, Inc. 512-393-5300 ----- Original Message ----- From: <eric@dol.net> To: <usr-tc@lists.xmission.com> Sent: Tuesday, March 13, 2001 2:45 PM Subject: (usr-tc) t1 service considerations with ami/sf

Our local podunk (sp) phone company can now deliver phone lines to me on t1s, with Super Frame and AMI encoding. vs all our other pops which are PRI based. What are my quality of service expectations for sf/ami? This an upgrade in their CO from regular pots lines which we have been using for quite some time. My bottom line is to now be able to deliver x2/v90 to my customers vs the v.34 connections I have been giving them. Will I or my customers notice the difference in quality vs a pri based system? thanks eric

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