18.1.1. Encrypted Signaling and Payload Connections 
Security for all signaling and payload streams passed through
an IP network by means of encryption is supported.
Table 84. Signaling and payload encryption (IP environment)
|
OpenScape 4000
|
STMI board
|
OpenScape 4000 SoftGate/vHG 3500/STMIX/STMIY
|
|
Native SIP Trunk
|
TLS
|
TLS + SDES
|
|
SIP-Q Trunk
|
TLS + MIKEY
|
TLS + MIKEY or SDES
|
|
HFA subscriber
|
TLS + MIKEY
|
TLS + MIKEY
|
|
SIP subscriber
|
TLS
|
TLS + SDES
|
INFO:
SIP devices are supported for SPE (TLS and SRTP) on STMIX/STMIY and SoftGate,
however for devices that don’t support MTLS (e.g. Mediatrix) MFS functionality
with SIPQ Trunks is not possible and a dedicated SIP Subscriber board
is recommended. The issue is the activation of SIPQ will force MTLS and
thereby SIP stations using TLS won’t work.