need help pbxes setting with tpad & voipstunt

[rizwan]

Hi,
i am very new to in this field, i want to configure my fresh tpad id and a fresh voipstunt id in pbxes with a tpad as inbound and voipstunt as outbound,
its is just because tpad has launched inbound Noumbers here in pakistan, i want to call land line to landline/mobiles For example,
tpad no, is 123456
passward *****
sip server sip@tpad.com
voipstunt id abcdef
passward *****
sip server sip@voipstunt.com
and i want this,
Tpad's inbound number + BREAK + Tpad Account number + BREAK + PBX PIN Number + BREAK + Number to call
as you now i am new to this field to i need help step by step, intresting to chat some one who can cofigure pbexs in msn online or pm me with detail
thanks & reguards,
rizwan