For caller ID to to work Modem MUST say “Support caller ID”
Modems which supports Dial Up Voice Fax will supports Caller ID.
i have using below devices since march.
CTI COMET USB CALLER ID - price - £89.00+ VAT/Delivery ( £115.00)
TRIXES USB 56K External Dial Up Voice Fax Data Modem -Price -£9.50 + delivery (£11.49)