Currently if an end user wants to park an active call Webex platform selects the first available user from the Group Call Park on the customer's group on Broadsoft to park the call against it and shows the extension number for a few second on the call window. If the end user doesn't pay attention he/she won't be able to pass the extension number info to his/her colleague to use it to retrieve the call using "Call Pickup" feature. It would be very helpful if Webex client allows the end user to type the extension number where he/she wants to park the call against it, this way the end user knows the extension number and can pass the info to his/her colleague to pick up the call.
Other benefit is that if the customer uses Polycom desk phones and they have KSE (Key System Emulation) feature setup on their Polycom phones when they park the call using Webex client they can park the call against one of the KSE line and tell their colleague to pick up from the selected KSE line on their Polycom phones.
KSE feature is basically one or more BLF appearances of dummy users that calls can be parked against them with only by selecting that line key on the phone and can be pickup by selecting the same KSE line key, so it simplifies the steps to park and pickup calls for the end users.
Now if Webex client allows the end user to put the extension number where they want to park the call they can put KSE line's extension number and inform the colleague to pickup the parked call on that specific KSE line.