[Hilo]what other service can be handled during a voice call?

Answer: Since GPRS “Class B” of the Hilo2G module, so:
During analog VOICE call, module cannot send an Email at the same time.
During analog VOICE call, module can send out a SMS which is over GSM.
During analog VOICE call, module cannot send out a SMS which is over GPRS.
During analog VOICE call, module cannot activate PDP context and make the connection of TCP/UDP/FTP//SMTP/POP3/ HTTP etc…