1) Initial communication - e-mail from HR Department to set-up a date for the interview meeting
2) First and only meeting with the recruiter (your to-be-boss) and one person from HR.
Questions very easy, like: tell me what you know about Release 4 Network architecture - what kind of network elements are there and what interfaces and protocols are used in R4 Mobile Networks. Describe what have you been doing in your previous job. One short question in English to check your language skills.