求翻译：甲乙双方在本合同履行过程中相互发出或者提供的所有通知、文件、文书、资料等，均可以当面交付或以本合同所列明的通讯地址履行送达义务。一方如果迁址或变更电话，应当及时书面通知另一方。是什么意思？

Both parties in the course of the performance of the contract to issue or provide each other all notices, documents, instruments, materials, etc., can be delivered in person or in the mailing address specified in the contract to fulfill service obligations. If you moved or changed telephone party sh

Both parties in the performance of this Contract or to provide all notices issued by each other, documents, instruments, information, and so on, may face-to-face delivery as specified in this Contract or to the address served fulfill obligations. If one of the parties should be relocated or changed

Armor second grade both sides mutually send out all notices, the document, the copy clerk, the material in this contract fulfillment process which or provide and so on, may in front of pay or the mailing address fulfillment delivery duty which lists by this contract.One if only then moves the site o

Both parties in the fulfilment of this contract in the process of issuing all the notices, documents, instruments, or providing information, and so on, are either delivered in person or by mailing address specified in the contract fulfilment service obligations. If you relocate or change telephone a

Both parties in the fulfilment of this contract in the process of issuing all the notices, documents, instruments, or providing information, and so on, are either delivered in person or by mailing address specified in the contract fulfilment service obligations. If you relocate or change telephone a