User guide

Chapter 4 – Configuring Your MultiVOIP
78 MultiVOIP® Voice/Fax over IP Gateways
Supplementary Services
Supplementary Services features derive from the H.450 standard, which brings to the VOIP telephony functions
once only available with PSTN or PBX telephony. Even though the H.450 standard refers only to H.323,
Supplementary Services are still applicable to the SIP and SPP VOIP protocols.
Three of the features implemented under Supplementary Services are closely related.
● Call Transfer. Call Transfer allows one party to re-connect the party with whom they have been speaking to
a third party. The first party is disconnected when the third party becomes connected. A programmable
phone keypad sequence—for example, #7—allows the feature to be used.
● Call Hold. Call Hold allows one party to maintain an idle (non-talking) connection with another party while
receiving another call (Call Waiting), while initiating another call (Call Transfer), or while performing some
other call management function. A programmable phone keypad sequence—for example, #7—allows the
feature to be used.
● Call Waiting. Call Waiting notifies an engaged caller of an incoming call and allows them to receive a call
from a third party while the party with whom they have been speaking is put on hold. Feature is used by a
programmable phone keypad sequence (for example, #7).
Call Name Identification is similar but not identical to the premium PSTN feature commonly known as Caller ID.
Call Name Identification. When enabled for a given VOIP unit (the ‘home’ VOIP), this feature gives notice to
remote VOIPs involved in calls. Notification goes to the remote VOIP administrator, not to individual phone
stations. When the home VOIP is the caller, a plain English descriptor is sent to the remote VOIP identifying the
channel over which the call is being originated (for example, “Calling Party - Omaha Sales Office Line 2”). If that
VOIP channel is dedicated to a certain individual, the descriptor could say that, as well (for example “Calling
Party - Harold Smith in Omaha”). When the home VOIP receives a call from any remote VOIP, the home VOIP
sends a status message back to that caller. This message confirms that the home VOIP’s phone channel is either
busy or ringing or that a connection has been made (for example, “Busy Party - Omaha Sales Office Line 2”).
These messages appear in the Statistics – Call Progress window of the remote VOIP.
Copying Parameters to Other Channels
Supplementary services parameters are applied on a channel-by-channel basis. However, after you establish a
set of supplementary parameters for a particular channel, you can apply this entire set of parameters to another
channel. To do so:
1. Click Copy Channel.
2. In the dialog box that opens, to copy a set of parameters to all channels, select Copy to All.
3. Click Copy.