Call logs are generated based upon calls from a subscriber line and calls
to a subscriber line. The call logs are formatted from Generic Data
Interface (GDI) messages into an email format (e.g., SMTP) within a call
log gateway. The formatted email is then emailed to an email recipient,
which can include a messaging service provider or the subscriber himself.
The email address to the recipient is determined by the call log gateway
based upon the subscriber's identity.