does anyone understand how i would dial from a sccp phone using letters so that i could dial a sip aor url/uri ? i have a ccm 4.0(2)a configured with a sip trunk and mtp so that i can dial from sccp phones joined up to the ccm to sip phones that are joined up to the sip proxy/registrar that i have the ccm sip trunk pointing to but i can only do this if the username portion of the sip aor uri is numbers........like .... sip:2001@mylab.com then from the sccp phone i dialed 2001 and the sip phone rings. but what if my sip phone address is .... sip:bob@mylab.com ...how then do i dial the digits "bob" from the sccp phone? aaron