Title: +038=534.001-RA001._02-Porttelefon Siedle Systemanvisning.pdf
Notiﬁcation service / Siedle ServerCPush Notiﬁcation Service (Apple Push Notiﬁcation Service / Google Cloud Messaging)F The user can open the Siedle App via the displayed push notification in order to accept the pending call. The Siedle App connects to the Access system via the mobile device. G The Access system establishes the connection to the door station and opens the communication channels to the Siedle App. The door call can take place.153 System description Connection to telephone systemsIn order to connect telephone systems (TC system) to the Access system, the following system requirements must be met (from Access system version V. 2.1.x): • VoIP standard: SIP protocol • Audio codec: G.711 a-law or µ-law • Length of the audio packets (framing size): 40 ms (can be changed to 20 ms) • Protocol for DTMF tones: RFC 2833 or SIP info