voice calling using usb modem and AT commands

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Dear Friends

i am developing an answering machine using an USB modem
but my modem make a ring to other end successfully. the other end person accepting the call.
the network operator starting bill for that call. but my modem failed to send audio stream which is playing in my PC. please help me how to establish audio line from my modem to other end phone and how to listening the audio file at other end phone.

i am very sorry for my bad English

thanking to all
warm regards
JBCS RAJU

Posted 19-Jul-14 10:06am

jbcsraju

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macika123 19-Jul-14 18:03pm

Hello,
How do you send the stream? I have one PCI voice modem, that is theoretically able to make phone calls, but it has audio input/output jacks on it, so you had to plug a microphone and speakers directly to the modem. I didn't know, that USB modems are also audio output devices, so I'm really curious how you do it.

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Dave Kreskowiak · Accepted Answer · 2014-07-19T15:02:00

Solution 1

Your modem hardware MUST have the capability to play audio over the modem in order to do this. Check your modems documentation to see if it has this ability. If not, or if it's not mentioned at all, you have to replace your modem with one that does have this capability. This is not a common feature.

Posted 19-Jul-14 15:02pm

Dave Kreskowiak

Updated 19-Jul-14 15:03pm

v2