Cisco EM-HDA-6FXO - 6-port voice/fax expansion module - FXO Cisco Router Network Module Retail $99.00
Cisco EM2-HDA-4FXO - 4-port voice/fax expansion module - FXO Cisco Router Network Module Retail $249.00
Cisco EM3-HDA-8FXS/DID - Cisco 2900 and 3900 series module 8-Port FXS/DID Voice/Fax expansion module with FXS & DID Retail $149.00
Cisco NM-HDA-4FXS - High density analog voice/fax network module with 4 FXS Cisco Router Network Module Retail $159.00
