Odoo is the world's easiest all-in-one management software. It includes hundreds of business apps:
CRM | e-Commerce | Accounting | Inventory | PoS | Project management | MRP | etc.
For v7.0 you can use this version... https://www.openerp.com/apps/7.0/smsclient/
As wizards are not migrated from v6 "wizard" class, you will need to go into database and change status of sms gateway to "confirm"
Then, it works like a charm (at least for smpp services) !!