signalling contact

例句：

1. 1. The new system is designed to improve communication between different organizations.
   新系统旨在改善不同组织之间的沟通。
2. 2.During the meeting, we discussed the importance of signalling contacts in maintaining effective communication.
   在会议期间，我们讨论了信号联络在保持有效沟通中的重要性。
3. 3. In order to ensure smooth operations, it's essential to have a clear understanding of each other's signalling contacts.
   为了确保顺畅运作，必须对彼此的信号联络有清晰的理解。