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hello:<div>I install fw and sangoma A101 card with sangoma isdn. after few days, caller can not </div><div>hear the ring back tone, but the voice worked. the hardware is ok, compare with normal status, the alert message </div><div>lost. how do i set that to enforce to send alert message?<br><br>Best regards,<br>James.zhu<br>Doing asterisk/PRI/ss7/dahdi, linux, asterisk/sangoma cards, recording device, VOIP gateway.<br>website: www.hiastar.com <br></div> </div></body>
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