SIP SIMPLE PIDF:“请勿打扰”约定DND 状态扩展
与 RFC4480 相关:RPID:对状态信息数据的丰富状态扩展格式 (PIDF) 没有 DND 活动:请勿打扰
。
另一方面,市场上有许多 SIP 电话系统支持 DND。是否存在以“标准”方式支持 DND 的约定?
In relation to RFC4480: RPID: Rich Presence Extensions to the Presence Information Data Format (PIDF) there is no activity for DND: Do not disturb
.
On the other hand there are many SIP telephone systems on the market that does support DND. Is there a convention to support DND in a "standard" way for presence?
如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱,如果其他用户或者作者回复了您的评论,将不能在第一时间通知您!
发布评论
评论(1)
DND 是一种略有不同的动物,而不仅仅是一种状态,而 SIMPLE 可以实现这一点。更具体地说,它是影响行为的 UA 状态。在现实世界中,这通常由手机通过返回 480 暂时不可用来实现,或者在系统充当 B2BUA 的情况下,这通常与 SIMPLE 协同工作来传达用户状态,并且本地 PBX 在 480 上返回 480他们代表他们参加了邀请赛的第一站。例如,3Com VCX 和 Adtran PBX 就是这样做的。
简而言之,SIMPLE只能说你不可用,而不能真正影响它。
据我所知,这不是标准,即使有,我也没有看到它被使用。警告:我的经验仅限于 3Com、Aastra 和 Adtran 系统。
DND is a slightly different animal than merely a status, which SIMPLE can accomplish. More specifically, it's a state of the UA that affects behavior. In the real world, this is usually implemented by handsets by by returning a 480 Temporarily Unavailable, or in the case of a system acting as a B2BUA, this usually works in concert with SIMPLE to convey user status and the local PBX returns a 480 on their behalf in the first leg of the INVITE. For example, this is how the 3Com VCX does things, and Adtran PBX's.
In a nutshell, SIMPLE could only say you are unavailable, not actually effect it.
To the best of my knowledge this is no standard, and if there is, I have not seen it used. Caveat: my experience is limited to the 3Com, Aastra, and Adtran systems.