This parameter, whether configured in res_digium_phone.conf for DPMA or in the blf_contact_group setting in XML, must be set to the group_name of the contacts group for which you wish subscriptions to be made. Subscriptions cannot be made to more than one group_name. Subscriptions will not be made if the blf_contact_group parameter is undefined. If you have skipped this step, you will not have blinking lights. The use of Smart BLF capabilities is not independent of this setting; this setting must still be used for deployments using Smart BLF BLF Items lists.
If the Smart BLF capabilities of the phone are being used, whereby a BLF Items sheet is being loaded onto the phone, then each and every contact to be placed on a Rapid Dial key must be explicitly defined. If no BLF Items sheet is loaded onto a phone, as-is the case with phones using firmware prior to 1.4.0, then the order of the contacts in this group is important. In that case, the named contacts here fill in the BLF-keys in the same order as given in the xml, and those contacts are subscribed to, in order.
mandatory, unique identifier for the action, used by blf_item definitions. One id with the reserved name "primary" should be used for each contact, to designate the primary action, that occurs when no other action is matched.
Magic action ids "intercom," "monitor," "sendtovm" and "dial_vm" will result in special icons displayed for the action.
optional, number, e.g. 1234, or URI like sip:host or sip:user@host, to be passed to the phone application and dialed for this action
optional, number to be prepended before dial, where be passed to the phone application and dialed for this action
optional, identifier for an application to which events or functions are sent. The identifier should be either one of the phone default applications (contacts, voicemail, parking, status, queues) or should be the identifier of a user-loaded custom application.
mandatory, pertinent information about the number for the Contacts application, e.g. SIP Extension, Cell; appears to the left of the number or application within the contact's information screen
mandatory, a name for this action, used as its language key within applications, e.g. custom applications; appears to the right, in square brackets, of the number or application within the contact's information screen