Cisco Cisco 1900 2900 3900 Series 8-Port Gigabit Ethernet HS-WIC with PoE Release Notes

IPv4 bearer

MIPv4, NEMOv4 and RFC 3025

IPv4 subnet behind the LTE User Equipment (UE) interface

eHRPD, which allows seamless handoff between LTE and 3G services (in EHWIC-4G-LTE-V only)

Seamless handoff between LTE and the eHRPD network (in EHWIC-4G-LTE-V only)

Support for the UMTS service as a fallback option from the LTE service (in EHWIC-4G-LTE-A and 
EHWIC-4G-LTE-G only)

Seamless handoff between the LTE and the UMTS service (in EHWIC-4G-LTE-A and 
EHWIC-4G-LTE-G only)

Over the Air Device Management (OTA-DM) including wireless configuration Firmware over the 
Air (FOTA) (in EHWIC-4G-LTE-V only)

Currently, cellular networks support only outgoing calls.

Throughput—Due to the shared nature of wireless communications, the experienced throughput 
varies depending on the number of active users or congestion in a given network.

Cellular networks have higher latency compared to wired networks. Latency rates depend on the 
technology and carrier. Latency may be higher because of network congestion.

Any restrictions that are part of the terms of service from your carrier.

Public Land Mobile Network (PLMN) CLIs exist but the feature is not supported in this release.

SMS—Only one text message up to 160 characters to one recipient at a time is supported. Larger 
texts are automatically truncated to the proper size before being sent.

For the router that runs the SNMP agent, you must configure appropriate access control (for 
example, SNMP-server community) using the Cisco IOS CLI for the NMS and agent to work 
properly. 

It is strongly recommended that you configure SNMP V3 with authentication/privacy when 
implementing SNMP SET operation.

GPS is not supported in Release 15.3(3)M.

CSCui61199

Modem Type: All LTE modems.