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is there a way to play a sound when making a call? #84

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andreisid opened this issue May 1, 2017 · 2 comments
Open

is there a way to play a sound when making a call? #84

andreisid opened this issue May 1, 2017 · 2 comments

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@andreisid
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@alex-eri
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alex-eri commented May 7, 2017

with Huawei and Zte, for example, you need to connect third port of usb modem. It uses 8bit a-law and u-law pcm format for voice. Stream beginning after ATA (answer) or ATD (dial).

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alex-eri commented May 7, 2017

I newer seen voice at same port.

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