also, Peter's shortcode will work for local calls, so change your LG to 5. If it is a PRI, you may have to change your Feature to Dial 3k1 as well. Dial works with POTS lines, but not with a PRI usually.
You will then need an additional short code for ld. This will be [9]1N; with Tn: 1Ns<DID> and LG: 1 and Feature Dial 3k1.