集体呼叫群组呼叫enhanced groucall: 强化群呼; 增强群呼增强群呼intra-groucall: 群内呼叫voicedata groucall: 语音数据群呼enhanced groucall service code: 强化群呼业务码enhanced groucall system: 强化群呼系统下载手机词典可随时随地查词查翻译