Configure Fax Voip FSP with Callcentric
Popular SIP provider in the United States. Callcentric supports both T.38 and audio faxes. This service provider also offers phone numbers in the US/Canada and many other countries.
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Configure SIP account
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Username (or SIP-ID): the phone number provided by the Callcentric
Password: password
SIP Registrar Server: callcentric.com
Configure Outgoing Call Routing
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On the General page, in the Dial on Line area, check that the following settings are used:
VOIP Protocol: SIP
Dial on SIP Server: callcentric.com
Username: the phone number provided by the Callcentric
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On the Fax page, in the Fax Support area, check that T.38 fax option is selected. In the T.38 Fax Settings area, specify Switch to T.38 after 0 seconds.
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Configure Incoming Call Routing
On the Fax page, in the Fax Support area, check that T.38 fax option is selected.
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