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bbob · 25-10-2007, 15:13

as you said the dtmf tones can be a problems. I have used UM with my home callback and never had any problems with dtmf tones.

Than I switched to manx card and using pbxes and from time time time had some problems with dtmf tones not coming through. 1 month before manx shut down the dtmf codes would not come thru at all !!! and callback was impossible.

Now I am using UM+ with callback and no problem for the DTMF tones. I have not tried Yackie with DTMF tones and Callback, but it is on my list to do.

The potential problem with dtmf tone probably comes from compression that some operators are using. It seemed to me that manx was using to much compression making it the dtmf tones would not come thru. I tested the callback and dtmf allways using betamax and Um+ came thru and Manx did not. As this is not a betamax problems it must be the carrier that causes the problem.

Callbackworld has some great ratex on iceland mobile, seems very low and competitive.

	(#7)
bbob (Offline) Senior Member Prepaid Expert Posts: 499 Join Date: 20 Feb 2007 Country:	25-10-2007, 15:13 as you said the dtmf tones can be a problems. I have used UM with my home callback and never had any problems with dtmf tones. Than I switched to manx card and using pbxes and from time time time had some problems with dtmf tones not coming through. 1 month before manx shut down the dtmf codes would not come thru at all !!! and callback was impossible. Now I am using UM+ with callback and no problem for the DTMF tones. I have not tried Yackie with DTMF tones and Callback, but it is on my list to do. The potential problem with dtmf tone probably comes from compression that some operators are using. It seemed to me that manx was using to much compression making it the dtmf tones would not come thru. I tested the callback and dtmf allways using betamax and Um+ came thru and Manx did not. As this is not a betamax problems it must be the carrier that causes the problem. Callbackworld has some great ratex on iceland mobile, seems very low and competitive.