I am testing this device for SIP-PRI to replace an end of life product and experimenting with troubleshooting methods that may come up. I am trying to set my TA908e's PRI to slave off of the PBX clock. I am using AOS R11.10.1.E. The manuals show that under the T1 interface that I should be able to put "clock source line" but the command does not apply (see below).
TA908e(config)#int t1 0/3
TA908e(config-t1 0/3)#clock source ?
system - Provide clock from chassis selection