Fortinet Technologies Inc. Page 116 FortiVoice Enterprise Phone System 4.0.0 Administration Guide
2. Configure the following:
GUI field Description
SIP • Name: Enter a name for this profile.
• DTMF: Select the dual-tone multi-frequency (DTMF) method used
by the VoIP provider. Options are RFC2833, Inband, Info,
Shortinfo, and Auto.
Auto means the VoIP provider’s server and the FortiVoice unit will
negotiate to select a DTMF method. You could also select a
specific DTMF method if required.
• NAT: Select if the VoIP service provider supports SIP NAT
translation.
• Video: Select if the service provider supports video calling over
SIP.
• Direct media stream: Select if the VoIP service provider supports
direct media transfer to extensions by bypassing the PBX in
between.
• T.38: Select if the VoIP service provider supports fax over VoIP
network.
• Monitor/Keep alive (SIP notify) interval: Enter the time interval in
seconds for the FortiVoice unit to talk to the SIP server of your
service provider to keep the connectivity and check its capability.
0 means no checking by the FortiVoice unit.
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