Patton electronics SmartNode Series Software Configuration Manual page 280

23 • CS context overview
location you get your clock source. If your clock for packaging the ISDN voice frames is not synchronized with
the remote ISDN clock, this may result in bit errors. In case of fax applications not one page could be transmitted.
• We need two ISDN ports, the first one for the ISDN phone, the second one for the public ISDN network.
This is described in section 'Configure ISDN Ports'.
• Furthermore we need two PSTN interfaces, each bound to an ISDN port. (This is described in section
"Configure call routing"
• To use ISoIP we need an ISoIP interface. (This is described in section
page 288)
• To support call routing we have to configure Session Router routing tables and the ISoIP and PSTN inter-
faces. (This is described in section
- from the ISDN phone with number 1xx-5xx, or with prefix 0041 for CH, to main office with a fallback
to PSTN
- All others are routed from the ISDN phone to PSTN
- from PSTN or main office to the ISDN phone
• We have to specify codec G.711 in the ISoIP gateway. This is described in section
VoIP connection" on page 283
• Furthermore we need in the IP context two Ethernet ports and their corresponding IP interfaces.
278
on page 288)
"Configure call routing"
SmartWare Software Configuration Guide
"Configure call routing"
on page 288). Calls are routed:
"Configure an ISoIP
CS context configuration task list
on