Merge #638 into sdk602patch0626 from refs/changes/638/head

Merge #638 into sdk602patch0626 from refs/changes/638/head

Code review from 胡传军

* refs/changes/638/head: (5 commits squashed)

  - 增加cat1 DTMF服务

  - Merge branch 'sdk602patch0626' of https://codeup.aliyun.com/64191456b9581d62e8f81ac0/FD230 into 0626

  - Merge branch 'sdk602patch0626' of https://codeup.aliyun.com/64191456b9581d62e8f81ac0/FD230 into 0626

  - 修复通讯录错误添加BUG

  - 合并

Signed-off-by: aliyun8003852482 <1224667075@qq.com>
Reviewed-by: snickersun@163.com <accounts_62b90f7fcf51ade33b6f628e@mail.teambition.com>
Merged-by: snickersun@163.com <accounts_62b90f7fcf51ade33b6f628e@mail.teambition.com>
link: https://codeup.aliyun.com/64191456b9581d62e8f81ac0/FD230/change/638