Operation Manual

Configuring the Voice Settings

SIP

Cisco SPA100 Series Administration Guide 51

SIP Timer Values

Mark all AVT

Packets

Select yes if you want all AVT tone packets (encoded for

redundancy) to have the marker bit set for each DTMF event.

Select no to have the marker bit set only for the first packet.

Default setting: yes

AVT Packet Size Indicates the AVT Packet size according to value set in ptime or

fixed 10ms.

Default setting: ptime

SIP TCP Port Min The lowest TCP port number that can be used for SIP sessions.

Default setting: 5060

SIP TCP Port Max The highest TCP port number that can be used for SIP sessions.

Default setting: 5080

CTI Enable Enables or disables the Computer Telephone Interface feature

provided by some servers.

Default setting: no

Keep Referee When

REFER Failed

Set this parameter to yes to configure the phone to

immediately handle NOTIFY sipfrag messages.

You can also configure this parameter in the configuration

file:

<Keep_Referee_When_REFER_Failed ua="na">Yes

</Keep_Referee_When_REFER_Failed>

Caller ID Header Provides the option to take the caller ID from PAID-RPID-FROM,

P-ASSERTEDIDENTITY, REMOTE-PARTY-ID, or FROM

header.

Default setting: PAID-RPID-FROM

Field Description

SIP T1 RFC 3261 T1 value (round-trip time estimate), which can range

from 0 to 64 seconds.

Default setting: 0.5

Field Description