Compatibility modes
DTMF mode
Setting controls how the softphone sends DTMF signals to the PBX. These are used to control IVRs (Interactive Voice Responses).
Example of use of an IVR at start of a phone call: For Sales, press 1, for Service, press 2 etc.
This setting must match the configuration on the PBX.
•COMtrexx: Exchange lines > Providers and Accounts > Provider > RTP > DTMF signalling
•COMmander/COMpact:Public Switched Telephone Networks > VoIP > provider > Configure > RTP > DTMF signalling
Further help under Provisioned Settings: AccountsRTCP Feedback
The RTCP protocol is used to negotiate and store quality of service (QoS) parameters.
Send KPML (Cisco Unified Communications Manager)
Uses Keypad Markup Language (KPML). This is mainly used in combination with the Cisco Call Manager and replaces the other DTMF functions.
Force RFC 3264 hold (Cisco Unified Communications Manager)
Forces a change in the Hold and Unhold packets and fixes some incorrect implementations that do not output the supported Hold methods correctly.
Use this setting if you have problems putting a call on hold and are certain that NAT is not the cause.
Cisco Call forwarding (Cisco Unified Communications Manager)
Enables Cisco's call forwarding on the server.
This option only works if you configure the telephone type as a Cisco softphone, instead of the standard third party SIP softphone, in the Cisco Call Manager.