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[General_Technical_Information]
Below is the protocol and codecs supported by the Gafachi network, as well as some notes on compatibility.
Protocol: SIP
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Codecs:
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Supported Features:
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G.711 ulaw
G.711 alaw
G.729
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DTMF (RFC2833 by default)
DTMF (RFC4733 by request)
CLI (Calling Party Number / Caller ID)
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By default our network requires SIP calls to be authenticated via MD5. If your equipment/software is incapable of this, and you would like IP-based authentication to be configured, you can configure this, once logged in, by following the link for "Setup IP-based Authentication".
Fax Support:
Gafachi offers 3 modes of fax support:
NONE - (default) Upon detecting a fax tone, no re-INVITE will be sent.
TRANSPARENT - Upon detecting a fax tone, if the codec is not already G.711 ulaw, a re-INVITE will be attempted to switch to G.711 ulaw
T.38 - Upon detecting a fax tone, our network will send a re-INVITE to attempt to switch to T.38. If the re-INVITE fails, a re-INVITE will be sent to attempt to switch to G.711 ulaw if the codec is not already G.711 ulaw.
Dialing/Number Format:
Below are the number formats for placing calls to the Gafachi network. These formats are the same regardless of the geographic origin of the call.
For US, Canada and other countries included in the North American Numbering Plan:
1 NPA NXX XXXX
For all other countries:
011 <country code> <number>
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