Why.........

skykid · 08-06-2003, 16:30

........doesn't my dads sim card work in my phone? When in put in my card it registers fine, but when i put in my dads card in it, it says ISM failure. Whats going on?

P.S. Were both on o2, but he's from the UK Cellnet ere, and im from the BT Cellnet one. (both PAYG)

Everything Goes · 08-06-2003, 16:55

The phone is locked not only to a network but to a specific tarrif as well. Commonly used on Voda pay as you talk.

bod1936 · 20-06-2003, 11:47

I wouldnt mind betting your dads SIM came from a Cellnet U phone. If that is the case the SIM will only work in that phone.

08-06-2003, 16:30	#1
skykid Forum Member Join Date: Dec 2002 Location: Liverpool (during school terms) / Pwllheli (during holidays) Posts: 266	Why......... ........doesn't my dads sim card work in my phone? When in put in my card it registers fine, but when i put in my dads card in it, it says ISM failure. Whats going on? P.S. Were both on o2, but he's from the UK Cellnet ere, and im from the BT Cellnet one. (both PAYG)

08-06-2003, 16:55	#2
Everything Goes Forum Member Join Date: Mar 2002 Location: In the future.... Posts: 11,259	The phone is locked not only to a network but to a specific tarrif as well. Commonly used on Voda pay as you talk.

20-06-2003, 11:47	#3
bod1936 Forum Member Join Date: May 2003 Posts: 79	I wouldnt mind betting your dads SIM came from a Cellnet U phone. If that is the case the SIM will only work in that phone.

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Why.........