Panasonic KX-NS700 Feature Manual page 92

5.1.9 Direct SIP Connection
In this way, extensions and CO lines connected to the PBX can be connected with clients of the external
services.
CO Line
Public Network
Extension
Conditions
Notice
•
When this feature is enabled at a site, SIP over TCP is used as the call control protocol. In this case,
all SIP line ports at that site will change to TCP/IP fixed operation and the protocol used by existing
SIP lines (UDP/IP) cannot be used.
•
When this feature is enabled at a site, be aware that all installed V-IPGW and V-SIPGW cards at that
site will be deleted.
•
When this feature is enabled, the maximum number of usable V-SIPGW channels will be limited to 64
channels per site or 256 channels for the system.
•
When this feature is enabled at a site, V-IPGW cards cannot be used at that site.
•
Direct SIP connection can be enabled or disabled on a per-site basis. Changes to this setting will be
reflected after a system reset is performed for the site.
For details, refer to "9.2.2 PBX Configuration—[1-1] Configuration—Slot—System Property—Site—Main
—SIP over TCP/IP (V-SIPGW) *)" in the PC Programming Manual.
•
When this feature is enabled, the supported audio codecs are as follows:
G.711 (µ-law)
G.711 (a-law)
Named Telephone event
Comfort noise
RED/8000
•
Inband DTMF signals (except for Flash) received from the PBX's extensions/CO lines can be sent to the
external service clients via the gateway.
•
It is possible to register several external servers and use the failover feature. For details, see "18.1.5 SIP
Server Failover".
•
It is not recommended to send faxes to external service clients when using the PBX as a gateway.
92 Feature Manual
PBX
V-SIPGW
SIP over TCP
Codec
IP Network
External
Server
8 kHz
8 kHz
8 kHz
8 kHz
8 kHz
External
Client 001
External
Client 002
External
Client 003
Sampling Rate
Document Version 2017-06