Specifications

MyPBX U5XX Administrator's Guide
www.yeastar.com Page 47
Note: *4 is the default setting, it can be changed under Feature Codes ->
General -> Call Pickup.
5) Call Duration Settings
Setup the max cull duration for every call of this extension, but it‟s only valid for
outbound calls. And if enter „0‟ or leave this blank empty, the value would be
equal to the max call duration configured in the Option Settings page.
Note: This setting will not be valid for internal calls.
6) VoIP Settings
·NAT
This setting should be used when the system is using a public IP address to
communicate with devices hidden behind a NAT device (such as a broadband
router). If you have one-way audio problems, you usually have problems with
your NAT configuration or your firewall's support of SIP and/or RTP ports.
·Qualify
Send check alive packets to IP phones
·Enable SRTP
Enable extension for SRTP (RTP Encryption).
·Transport
This will be the transport method used by the extension. The options are UDP
(default) or TCP or TLS.
·DTMF Mode – RFC2833, Info, Inband, Auto.
·Remote Register
Allow to register remote extensions.
This option is used to enhance the system security, it‟s disabled by default.
More details for the system security configuration, please refer to APPENDIX B
MyPBX Security Configuration Guide
Other Options