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			(#11)
			 
		 
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				 Senior Member 
				Prepaid Pioneer 
				
					
		
			
			
			Posts: 589 
				
				Join Date: 01 May 2006 
				Location: Greece 
				
				
				
					Country:  
				
			 
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			(#12)
			 
		 
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				 Senior Member 
				Prepaid Guru 
				
					
		
			
			
			Posts: 1,164 
				
				Join Date: 04 Feb 2006 
				Location: Germany 
				
				
				
					Country:  
				
			 
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 From your homephone its mostly cheaper to use local providers anyway, istnt it? Chris Thailand: truemove (phone+sms+wifi) International: xxSim+372, toggle +44/+49/+41/+31 Phones: Huawei Mate7, Huawei P9  | 
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			(#13)
			 
		 
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				 Junior Member 
				Amateur Member 
				
					
		
			
			
			Posts: 27 
				
				Join Date: 17 Apr 2006 
				Location: uk 
				
				
				
					Country:  
				
			 
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 Thinking of using UM and a uk roaming mobile to trigger the callback to UM  | 
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			(#14)
			 
		 
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				 Senior Member 
				Prepaid Specialist 
				
					
		
			
				
			
			
			Posts: 898 
				
				Join Date: 17 Mar 2004 
				Location: Richmond, VA USA 
				
				
				
					Country:  
				
			 
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	  Yes.  The relationship 1.  CALLBACK TRIGGER # to 2.  # TO BE CALLED BACK is the key.  When any phone dials 1, 2 will be called.  My understanding and experience.  
		
	
		
		
		
		
			Service: US T-MO post paid (2) - US T-MO prepaid (2) - UM+ - TravelSIM DE SIMYO - DE SUNSIM T-Mobile DE Calling Cards: Onesuite Enjoyprepaid AT&T MCI Mobivox  | 
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			(#15)
			 
		 
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				 Senior Member 
				Prepaid Professionist 
				
					
		
			
			
			Posts: 1,465 
				
				Join Date: 27 Feb 2004 
				Location: Mississippi, USA 
				
				
				
					Country:  
				
			 
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	  Also, if your roaming mobile has GPRS you can trigger a callback by just "touching" a URL. I previously posted instructions on how to do this. This avoids the possibility of being charged for an unanswered callback trigger, which sometimes happens although it shouldn't. The byte count on the GRPS trigger is so small I've never been billed for it.  
		
	
		
		
		
		
		
	
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			(#16)
			 
		 
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				 Senior Member 
				Prepaid Pioneer 
				
					
		
			
			
			Posts: 589 
				
				Join Date: 01 May 2006 
				Location: Greece 
				
				
				
					Country:  
				
			 
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			(#17)
			 
		 
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				 Senior Member 
				Prepaid Guru 
				
					
		
			
				
			
			
			Posts: 1,211 
				
				Join Date: 06 Feb 2005 
				Location: Swidnik-home, Lublin-work 
				
				
				
					Country:  
				
			 
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  ) access number is also a backup in case when callback doesn't work for any reason....At least it turned out to be a backup for me once or twice....  | 
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