iPECS UCP600 - Page 270

iPECS eMG80/100& eMG800 & UCP & vUCP
Administration and Programming Manual Issue 2.5
256
Table 4.4.8.3-1 SIP CO ATTRIBUTES
ATTRIBUTE
DESCRIPTION
RANGE
DEFAULT
181 Being
Forwarded
A SIP 181 Message is sent when a call is being redirected or
forwarded if enabled.
Unused /
Use
Unused
100rel support
To improve the reliability of Provisional SIP messages, the system
is configured to send and expect an ACK response to such
messages.
OFF
ON
OFF
Use single
codec only
During capabilities negotiation, the system sends the first priority
codec id or the prioritized list of codecs as defined in the Codec
priority settings below.
OFF
ON
OFF
Use rport
method
When employed behind a NAPT server, the system can use the
Rport parameter in the SIP Via header to request the SIP server
respond to the IP address and port of the originator.
OFF
ON
OFF
Domain
The Service Provider’s SIP Call server's domain name is used in
SIP “To:” headers.
Max.
40characte
rs
Invite
Acceptance
The system can accept SIP INVITE requests from any domain or
only from the “Domain” specified above.
Domain
Only /
From All
From All
Contact
Address
Domain
The system will populate the SIP “Contact” header Domain with
either the iPECS device IP address or the “Domain” specified
above. SIP Device Addr, Server Domain
Refer to
description
SIP Device
Addr
From Address
Domain
The system will populate the SIP “From” header Domain with
either the iPECS device IP address or the “Domain” specified
above. SIP Device Addr, Server Domain
Refer to
description
Server
Domain
Firewall IP
Apply
When the iPECS system and VoIP devices are assigned a
Firewall IP address, the system can use either the Firewall or local
IP address in the Via and Contact headers as well as in SDP
messages.
OFF
ON
ON
Diversion
Recursing
When a 3xx Diversion response redirects a SIP call, such as
when a call forwards, the SIP message can be forked (recursing)
or forwarded (non-recursing).
Recursing, Non-Recursing
Refer to
description
Recursing
VSF Answer
Response
The system can respond to a SIP Invite with a SIP 183 Session
Progress message. This allows a VSF announcement to play and
user dialed digits to be analyzed by CCR and, if the CCR
destination is an external number, the system can send a SIP 3xx
call diversion message to forward the call via the SIP network.
183 Msg.
200 OK
200 OK
RTP Diversion
Method
Reserved Currently.
Recursing, Non-Recursing
Refer to
description
Recursing
OPTIONS
Usage (Keep
Alive)
With “OPTIONS Usage” ON, an Option message is sent at
intervals of the Check Message Send Timer assigned in PGM 210
to assure a connection with the SIP CO. SIP COs generally
provide an Option message. In this case, the UCP should not be
enabled here.
OFF
ON
OFF