<div>Dear All,</div>
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<div>I have 3 sites running CME (C2800NM-SPSERVICESK9-M), Version 12.4(24)T2), each sites have individual ISDN PSTN line connected and use leased-line connecting to a hub site. My problems now are:</div>
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<div>sample info:</div>
<div>1. Site-A with extension A1 & A2, A1 has call forward noans to A2</div>
<div>2. Site-B with extension B1 & B2, B1 has call forward noans to B2</div>
<div>3. Site-C with extension C1 & C2, C1 has call forward noans to C2</div>
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<div>1. extension A1 call A2, call established successfully, but no audio at all</div>
<div>2. extension A1 call B1, if B1 no answer, it'd be forwarded to B2, but A1 is using PSTN to call B2 instead using VoIP</div>
<div>3. extension C1 call B1, if B1 no answer, it'd be forwarded to B2 and it's using VoIP, after B2 pickup, call established successfully but no audio at all</div>
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<div>It's really weird, I've been checking and googling for a while but couldn't find anything helpful. </div>
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<div>Thanks a lot~</div>
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<div>Regards,</div>
<div>Alan</div>
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