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50
VoIP subscriber gateways
Reserved SIP proxy
–
addition reserved SIP-proxy addresses:
–
Proxy address
–
network address of the reserved SIP-server;
–
Registration server
–
to specify registration server you should set flag before the field and
enter a registration server address of a reserved proxy;
To add reserved SIP server, click
‘
Add
’
button. To delete it, click
button opposite to server.
–
Home server check
–
check availability of the main SIP server in the Homing mode;
–
Check method
–
method selection to check availability of the main SIP server in the
‘Homing’ mode:
–
Invite
–
transmission of INVITE request to its address when performing an
outgoing call;
–
Register
–
periodic transmission of REGISTER messages to its address;
–
Options
–
periodic transmission of OPTIONS messages to its address;
–
Keepalive timeout (s)
–
periodic message transmission interval in seconds; used for
primary SIP server availability check;
–
SIP domain
–
domain where the device is located (fill in if required);
–
Use domain to register
–
use the domain during registration. In this case, domain will be
transmitted into Request URI of ‘REGISTER’ request;
–
Outbound proxy
–
‘Outbound’ mode:
–
Disable
– call will be routed according to the numbering schedule;
–
Outbound
– numbering schedule is required for outgoing communications, however, all
calls will be routed via SIP server; if there is no registration PBX response will be sent to
the subscriber in order to enable subscriber service management (VAS management);
–
Outbound with busy
– numbering schedule is required for outgoing communications;
however, all calls will be routed via SIP server; if there is no registration, VoIP will be
unavailable: error tone will be transmitted to the phone headset. ‘Outbound’ mode is
analogue to the device operation with dialing plan (x.);
–
Registration renewal time period (Expires)
–
time for subscriber port registration on SIP server. At
the average, port registration renewal will be performed after 2/3 of the specified period;
–
Registration Retry Interval
–
when the registration is unsuccessful, time period between SIP server
registration attempts;
–
User call (SIP):
180 Ringing
caller equipment will receive response 180; upon receiving this message,
caller equipment should send a local ringback tone into the line;
183 Progress (Early media)
–
caller equipment will receive response 183+SDP—used for
voice frequency path forwarding before the answer of the callee. In this case,
TAU-8.IP
will send a ringback tone remotely to the caller;
–
Use SIP Display info in Register
–
when checked, use username in 'SIP Display Info' field of the
'Register' message;
–
Ringback at 183 Progress
– when checked, 'ringback' tone will be sent upon receiving '183
Progress' message (w/o enclosed SDP);
–
Use Alert-Info header
–
process INVITE request 'Alert-Info' header to send a non-standard ringing
to the subscriber port. Cadence for a non-standard ringing may be configured in the section
3.1.4.9
;
–
Remove rejected media
– when option is enabled, passive media will be excepted from offer-SDP
against the RFC3264 advice. Enable the option for coordination with Iskratel equipment ;