[Asterisk-Users] Grandstream HT486 and FAX

Hi All, I was trying to test to send a fax to an international number. Here's the setup: FAX -- HT486 -- SIP PROXY -- GATEWAY -- PSTN -- FAX Unfortunately I haven't been able to do it, I read somewhere that fax uses G711 only, is this true? because our gateway provider uses only G729. does

Re: [Asterisk-Users] Grandstream HT486 and FAX

Hi Ronald, G.729 will not carry FAX. G.711 will, but over IP it still tends to be flaky. Reliable FAX over IP requires T.38. Steve Ronald Ramos wrote: Hi All, I was trying to test to send a fax to an international number. Here's the setup: FAX -- HT486 -- SIP PROXY -- GATEWAY -- PSTN -- FAX