AT&T Lucent MLS-12D Phone "extentsive" Questions

programming extentsions on mls 12-D I need to program an extension on my phone. Can you help? yes

I want to change the ext. of the Operator I want to change the extentsion of the operator. When someone dials "0" it rings to ext. 227. I want it to ring to ext. 231. How do I fix this? It would be ...