How can I complete the flexible seating?

[Lucia_Yealink]

Sorry for my late reply since i did not receive the remind from the post.

About GuestLock softkey, pls see the detail below:

A Flexible Seating Guest service allows the user to specify a PIN code for unlocking the phone.
When a guest user creates an association with a host, the host device downloads the device files of the guest. If provisioned, this Unlock Phone PIN code is provided to the phone device via the device configuration files. If the Unlock Phone PIN code is set, the host phone can allow the guest user to lock the phone. The host-guest association cannot be disassociated via the phone until the phone is unlocked using the Unlock Phone PIN code.

Since the guest’s Unlock Phone PIN code is provided to the phone, the leased phone also provides a soft key (for example, GuestLock) for the guest user to lock the phone. The guest user presses the soft key to lock the phone.

So if you want to configure the GuestLock key, then pls configuration the Unlock Phone PIN code in the Server side.

For more info about the Flexible Seating Guest feature, pls refer to the guide in the attached:
  FlexibleSeatingServiceFD-R200.pdf (Size: 3.89 MB / Downloads: 15)