You are then using T1's to terminate PSTN routed called originating from
SIP?
Is your config operating as a GW and so a phone # can be aliased to a SIP
allowing number portability?
Thanks,
Mark Williams
Phone: 501.318.3663 ext. 600
1307 Central Ave
Hot Springs, Arkansas 71901
For God so loved the world that he gave his only begotten Son,
that whoever believes in him shall not perish but have eternal life. John
3:16