Fast busy while transfering a call

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Apr 10th, 2007
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Hello Experts,

I receive a call and need to transfer it to a different extension number but the only thing I hear is a fast busy! I know this may have something to do with Partition and CSS but the number to which we are trying to transfer is in the same partition and CSS. Do I need to enable MTP on the GW config page? The CCM version is 4.1. Could you please advice?


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thisisshanky Tue, 04/10/2007 - 10:37
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Can you dial that extension from the phone you are trying to transfer.

thisisshanky Tue, 04/10/2007 - 10:39
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So when you answer call1 on this phone and then then hit transfer softkey, and dial the extension it should start ringing. Do you hear a ring, or a fast busy at this time ? Or do you hear fast busy on the original caller's phone, after the transfer is complete ?

thisisshanky Tue, 04/10/2007 - 10:55
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OK, That doesnt help a lot. You need to tell me if you are hearing fast busy when you hit transfer softkey and dial the destination or after your complete the transfer by dialing the number and hit the transfer key again.

mightyking Tue, 04/10/2007 - 11:26
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I am out of the office and can't do any tests right now but need to resolve this issue remotely. Would it be possible for you to give me the solution for both scenarios?


thisisshanky Tue, 04/10/2007 - 11:33
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Let phone A be the phone with transfer problem. Phone B be the one to which you are transfering the call.

Case I: Call from phone C (ip phone) to phone A, from phone A, hit transfer key. Phone C should go to hold. Dial phone B. Phone B should ring.

i. If it doesnt not ring Phone B make sure Phone A has a CSS that has access to Phone B's partition.

ii. If Phone B does ring, hit the transfer key again and now Phone C should be connected to Phone B. This completes the transfer.

Case II: Repeat the above scenario for an external call from PSTN. (replace phone C with a cell phone and call phone A from PSTN).

Let me know if transfer fails in Case I or Case II or both.

mightyking Tue, 04/10/2007 - 11:45
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The transfer fails in both scenaios. As I mentioned before both phones are in the same Partition and CSS.


juadelga Thu, 04/12/2007 - 16:00
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Go the Application logs and see if at the moment of the transfer, any MTP errors are logged.


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