Cisco 501G Administration Manual page 84

Configuring SIP, SPCP, and NAT
Configuring SIP
Cisco SPA500 Series and WIP310 IP Phone Administration Guide
Parameter Description
Random REG CID If set to yes, the IP phone uses a different random call-ID for
On Reboot registration after the next software reboot. If set to no, the IP
phone tries to use the same call-ID for registration after the next
software reboot. With either setting the phone uses a new random
call-ID for registration after a power-cycle. Defaults to no.
NOTE
Mark All AVT If set to yes, all audio video transport (AVT) tone packets
packets (encoded for redundancy) have the marker bit set. If set to no, only
the first packet has the marker bit set for each DTMF event.
Defaults to yes.
SIP TCP Port Min Specifies the lowest TCP port number that can be used for SIP
sessions. Defaults to 5060.
SIP TCP Port Max Specifies the highest TCP port number that can be used for SIP
sessions. Defaults to 5080.
CTI Enable If set to yes, enables the computer telephony integration (CTI),
where a computer can act as a call center handling all sorts of
incoming and outgoing communications., including phone calls,
faxes, and text messages. The CTI interface allows a third-party
application to control and monitor the state of a Cisco IP phone
and, for example, initiate or answer a call by clicking a mouse on a
PC,
NOTE
attached SPA500S to properly monitor the SPA500 Series IP
phone's line status. If setting up a SPA500S, see
"Configuring the Cisco SPA500S Attendant Console."
Defaults to no.
Caller ID Header Select where the IP phone gets its caller ID from:
PAID-RPID-FROM
P-ASSERTED-IDENTITY
REMOTE-PARTY-ID
FROM header
Defaults to PAID-RPID-FROM.
NOTE
Not applicable to the WIP310.
CTI must be enabled on the SPA500 Series IP Phone for an
Not applicable to the WIP310.
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Chapter 9,
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