The SIP voice gateway used aluminum casting, high mechanical strength and strong impact resistance.
Support SIP application, including before the call (unconditional transfer/no answer transfer/user busy transfer), call waiting, call a hotline number, call transfer (blind turn/ask), after three calls, call hold, quickly abbreviated dial, number replace rules, restrictions, call, don’t disturb, caller id, outside threats ringing, outside threats ring and so on.
Communication plays a vital role in the success of any organization. Efficient and effective communication strengthens teamwork, boosts productivity, and...