the only "sure way" is a postcard or a letter letting them know the specifics

write me :)

I always felt like reading was my salvation, it is the ONLY way to escape ;)... good luck keeping things together, it's never easy for those on the outside... and harder for those inside not jumping to conclusions when they don't hear from you. 

one to three months usually

corrlinks access - yes, phone calls - no

It depends on the facility, there are some good vendors who have great deals (compared to the commissary options)... but you should contact the nit secretary at the facility to get their rules

We have a lot of active members who write the celebrity inmates often... you'd be surprised at the number of responses that get mailed back through our system. From OJ Simpson, Aaron Hernandez (deceased now), the Menendez brothers, R Kelly, Meek Mill, Kodak Black, and Jodie Arias to crypto scammer Sam Bankman Fried and many more.

send an email to aid@inmateaid.com for any corrections or general assistance

Yes, there are several options for you to buy from third-party companies that have a relationship with the prison or jail where your inmate is incarcerated. Not every facility accepts packages from all vendors so please call the facility and ask. For instance, check out these companies to see if they have an option for your inmate... Access Securepak, iCare, Mycarepack to name a few. 

The phone system through InmateAid allows you to "use a local number" inside the United States so that your inmate doesn't have to absorb the high cost of international calls