from switzerland to new york, what access code and area code I must use to send an sms?

Question

switzerland-swisscom, new york-cingular. I tried to use 001+cellphone number but my friend can not receive my message.

Answer 1

Can he send a message to you?

The only alternative would be to try the number as following:

[phone]

The message will anyway only arrive if the target phone is in a GSM system.

Greetings from a Swisscom client in Switzerland...

Answer 2

Your friend may not have a GSM cell phone provider. Find out if they are using Cingular or T-mobile. If not, they will not receive your SMS.