Option11c TIE PRI to Asterisk

[StinkTech]

Connecting an Asterisk box to an Opttion11c via a TIE PRI. The Option11c has 2 PRI's from AT&T and a TIE PRI to the Asterisk Box. The Asterisk Box has a PRI from Windstream. Have call routing between the two working but cannot figure out the timing setup of the TIE PRI to the Asterisk box to stop SLIPs on the Option11c.

* The Option11c is receiving SLIPR on the PRI to the asterisk box if I set the Asterisk Box TIE line clocking to free.
* The Option11c is receiving SLIPD on the PRI to the asterisk box if I set the Asterisk Box TIE line clocking to Windstream PRI.

How do you set the clocking on the TIE PRI to stop this SLIPs?

[Option11c] <--Client--AT&T PRI--NET-->
[Option11c] <--Client--AT&T PRI--NET-->
[Option11c] <--Client--TIE PRI to Asterisk--NET-->[Asterisk Box]<--Client--Windstream PRI--NET-->

Thanks,
StinkTech