Version 7.2 1059 Mediant 1000B Gateway & E-SBC
User's Manual 62. Configuration Parameters Reference
Parameter Description
configure voip > gateway
dtmf-supp-service supp-
service-settings > dtmf-
during-hold
[PlayDTMFduringHold]
Determines whether the device sends DTMF signals (or DTMF SIP INFO
message) when a call is on hold.
ï‚§ [0] = (Default) Disable.
ï‚§ [1] = Enable - If the call is on hold, the device stops playing the Held
tone (if it is played) and sends DTMF:
To Tel side: plays DTMF digits according to the received SIP
INFO message(s). (The stopped held tone is not played again.)
To IP side: sends DTMF SIP INFO messages to an IP destination
if it detects DTMF digits from the Tel side.
62.10.5.6 Call Transfer Parameters
The call transfer parameters are described in the table below.
Table 62-47: Call Transfer Parameters
Parameter Description
Enable Transfer
configure voip > gateway dtmf-
supp-service supp-service-settings
> enable-transfer
[EnableTransfer]
Enables the Call Transfer feature.
ï‚§ [0] Disable
ï‚§ [1] Enable = (Default) The device responds to a REFER
message with the Referred-To header to initiate a call
transfer. For analog interfaces: If the transfer service is
enabled, the user can activate Transfer using hook-flash
signaling. If this service is enabled, the remote party
performs the call transfer.
Note:
ï‚§ To use call transfer, the devices at both ends must support
this option.
ï‚§ To use call transfer, set the parameter EnableHold to 1.
Transfer Prefix
configure voip > gateway dtmf-
supp-service supp-service-settings
> transfer-prefix
[xferPrefix]
Defines the string that is added as a prefix to the
transferred/forwarded called number when the REFER/3xx
message is received.
Note:
ï‚§ The number manipulation rules apply to the user part of the
Refer-To and/or Contact URI before it is sent in the INVITE
message.
ï‚§ The parameter can be used to apply different manipulation
rules to differentiate the transferred/forwarded call number
from the originally dialed number.
Transfer Prefix IP 2 Tel
xfer-prefix-ip2tel
[XferPrefixIP2Tel]
Defines the prefix that is added to the destination number
received in the SIP Refer-To header (for IP-to-Tel calls). The
parameter is applicable to FXO/CAS blind transfer modes, i.e.,
LineTransferMode = 1, 2 or 3, and TrunkTransferMode = 1 or 3
(for CAS).
The valid range is a string of up to 9 characters. By default, no
value is defined.
Note: The parameter is also applicable to ISDN Blind Transfer,
according to AT&T Toll Free Transfer Connect Service (TR