| ip_address = tenv.ip_address() | |
| nitb = tenv.nitb() | |
| bts = tenv.bts() | |
| ms_ext = tenv.msisdn() | |
| fake_ext = tenv.msisdn() | |
| ms = tenv.modem() | |
| nitb.configure(ip_address, bts) | |
| bts.configure(nitb) | |
| nitb.start() | |
| bts.start() | |
| nitb.add_fake_ext(fake_ext) | |
| nitb.add_subscriber(ms, ms_ext) | |
| ms.start() | |
| wait(nitb.subscriber_attached, ms) | |
| sms = ms.sms_send(fake_ext) | |
| wait(nitb.sms_received, sms) |