Codec Support
G.711, G.729, iLBC
Communication Protocol
SIP
Compatible Device
3911 IP Phone
Deployment
On-Premises
Encryption Support
Yes
Feature Set
Basic
Firmware Updates
Yes
License Type
CallManager Express License
License Validity
Perpetual
Local Conferencing
3-Way Conferencing
Management
Web-Based Graphical Interface
Number of Supported IP Phones
1
Platform
Cisco CallManager Express
Product Brand
Cisco
Product Name
SW-CCME-UL-3911
Redundancy Support
Yes
Scalability
Up to 240 users
Security Features
SRTP, TLS
System Requirements
Cisco ISR G2 router
Voice Messaging
Yes