11.5. Non-SIP Call port seizure preference

For non-SIP Calls, the port seizure preference is listed below

1. Inbound from PSTN

If the inbound FXO port was configured as "Fax" device, it will also seize only FXS ports that "Connect Device" is configured as Fax. The Voice devices behave the similar way.

From FXO port to FXS port

Note

 

 

 

Connect Device at FXO port

Connect Device at FXS port

 

 

 

 

VOICE port

Select VOICE port only

From the lowest port number

 

 

upward

 

 

 

FAX port

Select FAX port only

From the lowest port number

 

 

upward

 

 

 

2. Outbound to PSTN

For the calls from FXS to FXO, the ports of the same "Connect Device" type will be the prior selection for the calls.

If there is no correct configured port is available, it will ignore the "Connect Device" setting and create a call as the rule below.

From FXS port to FXO port

Note

 

 

 

Connect Device at FXS port

Connect Device at FXO port

 

 

 

 

VOICE port

Select VOICE port (1st priority)

From the highest port

 

Select FAX port (2nd priority)

number downward

FAX port

Select FAX port (1st priority)

From the highest port

 

Select VOICE port (2nd priority)

number downward

For the setting of "Connect Device", please refer to 12.10 CHANNEL

11.6. Call Waiting

Call waiting function for a FXS port to answer two SIP calls.

When D answer a SIP call from other SIP phone or gateway, such as A. In normal condition, another incoming call dial to D will be busy, such as B to D. With Call Waiting function, the phone

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