Specifications

Spectralink 84-Series with AudioCodes Gateway and Avaya Communication Manager: Interoperability Guide
1725-86914-000_C.docx
September 2013 24
Handset Features
1
Mediant
Gateway
SIP
Camp-on (“automatic callback”)
N
Y
Authentication
N
Y
Hunt groups
N
Y
Group paging (integrated with PBX)
8
N
Y
Call Park
N
Y
Distinctive Ring
N
Y
HD Voice (Siren Codec)
N
Y
Per Line Authentication
N
Y
Footnotes
1. Core Features
Core Features reside locally in the handset but require some interaction with the Mediant
Gateway and PBX. These features work only as long as the phone is registered and
turned on.
If the phone is turned off, registered to a different user or moves out of range for an
extended period of time, calls to the handset are neither received nor forwarded. When
the phone is unavailable, the Mediant Gateway must provide a fallback option for how to
handle these calls. We specify where to send calls like these in Chapter 6, section 12.
Configure IP to Trunk Routing.
2. Incoming/Outgoing calls
Incoming/Outgoing calls include to/from another 84-Series handset, a (TDM or
proprietary VoIP) desk phone, and a trunk.
What happens during the timeout?
Necessarily, we have to set a time period for the Mediant Gateway to realize that the
handset is not available. Any timeout creates a window of time where the phone could
be turned off or out of range during which calls that come to it will not respond in the
usual way. The caller will hear only silence, not a busy tone or a ring. Too short a
timeout will over-burden the Mediant Gateway with repeated registration requests. In this
document we have recommended a 60 second timeout with the understanding that
sometimes the phone will give an unexpected response to a caller during this 60 second
window.
3. Caller ID display during call transfers
Caller ID can be confusing during call transfers. Let’s look at three scenarios while
referring to the diagram below in which Alice and Ben have 84-Series handsets on the
same Mediant Gateway , Dave has an 84-Series handset on another Mediant Gateway ,
and Cindy has a deskphone.