Messaging Release 6.0 supported the switch integration to Avaya CS1000 only through an AudioCodes SIP gateway. Messaging Release 6.1 and later provides improved integration capabilities, as listed in the following table:
| Use | CS1000 R6.0 | CS1000 R7.0 | CS1000 R7.5 |
|---|---|---|---|
| AudioCodes SIP gateway | Yes | Yes | Yes |
| Session Manager including SRTP | No | No | No |
| Session Manager without SRTP | No | No | Yes, through SM 6.1 |
| SES | No | No | No |
| Direct (without Session Manager), Single application server for a single telephony server integration, no SRTP, no TLS | Yes | No | No |
| Direct (without Session Manager), Single application server for a single telephony server integration, including SRTP | No | No | No |
| Direct, multiple application servers for a single telephony server integration | No | No | No |