[SR-Users] newbie question - routing sip-calls

[thomas peterseil]

hello,
sorry for this very basic question, but i am a new kamailio user.
i installed kamailio and calls between users work fine.
now i would like to make it possible to route outbound sip calls. so
when a user dials for example 21 the call should be routed to
wbdemo at zipdx.com

thank you so much for your help!
best regards,
thomas peterseil