I've got a 2811 with 3 E1 voice cards. Each voice cards, has got 2 ports. Each port is connected to different telco. The gateway is operating in H323 mode. I can receive incoming calls perfectly fine, and also make outbound calls. Occasionally, I noticed the SLIP erros (show controller e1) keeps increasing.
My question: Since each port clocking is coming from a different telco, (and i've configured for clocking to be from line), should I be configuring "network-clock-select)?
If not, what else should I be doing to troubleshoot this SLIP errors?
Thanks in advance.