Download __full__ C2900-universalk9-mz.spa.157-3.m8.bin - -

Note: This method is common; however, network devices like firewalls inspecting traffic can sometimes cause the transfer to fail or result in a corrupted file on the router.

The 15.7(x) train is heavier than the 15.2 or 15.1 trains of the past. Download C2900-universalk9-mz.spa.157-3.m8.bin -

Enhanced Voice over IP (VoIP) capabilities via Cisco Unified Communications Manager Express (CME) and Survivable Remote Site Telephony (SRST). Note: This method is common; however, network devices

Turns the router into a voice gateway. It enables voice-over-IP (VoIP) signaling protocols (SIP, H.323, MGCP) and unlocks hardware DSP resources for legacy voice interface cards (FXS, FXO, T1/E1 PRI). System Requirements & Pre-Upgrade Checklist Note: This method is common