Hi RP ~ Thanks for your question and for joining Jobcase! It's a little tough to understand the complete picture without knowing more (filling in your profile would help!), but it sounds like you're interested in knowing how to develop your skills so that you'll be selected to interface with clients ~ am I right? If that's the case, then I'd recommend you ask for a meeting with your direct supervisor to discuss. Please keep in mind that the manager of a team needs to assess his/her whole team's skills in many areas: technical aptitude, ability to communicate internally and externally, ability to prioritize, as well as support business goals. You need to ask for a CANDID assessment of your skills in these areas... then listen to the feedback. This last part is very important, especially since you're recognizing a pattern.
Please remember: you're probably going to hear things you won't like. You'll need to work on areas that aren't comfortable. Sometimes classes help, sometimes an outside mentor is the right answer... you'll have to work together to figure out the right answer. Keep an open mind, try your best, and continue to communicate with management.
Sounds like you're on the right path, so best of luck! Marijoy