Operation Manual

Configuring the Voice Settings

Line 1 and Line 2 Settings (PHONE 1 and PHONE 2)

Cisco SPA100 Series Administration Guide 96

Hook Flash Tx

Method

Select the method for signaling hook flash events: None, AVT, or

INFO. None does not signal hook flash events. AVT uses

RFC2833 AVT (event = 16) INFO uses SIP INFO with the single

line signal=hf in the message body. The MIME type for this

message body is taken from the Hook Flash MIME Type setting.

Default setting: None

FAX T38

Redundancy

Select the appropriate number to indicate the number of previous

packet payloads to repeat with each packet. Choose 0 for no

payload redundancy. The higher the number, the larger the packet

size and the more bandwidth consumed.

Default setting: 1

FAX T38 ECM

Enable

Select yes to enable T.38 Error Correction Mode. Otherwise select

no.

Default setting: yes

FAX Tone Detect

Mode

This parameter has three possible values:

• caller or callee: The ATA will detect FAX tone whether it is

callee or caller

• caller only: The ATA will detect FAX tone only if it is the

caller

• callee only: The ATA will detect FAX tone only if it is the

callee

Default setting: caller or callee.

Symmetric RTP Enable symmetric RTP operation. If enabled, the ATA sends RTP

packets to the source address and port of the last received valid

inbound RTP packet. If disabled (or before the first RTP packet

arrives) the ATA sends RTP to the destination as indicated in the

inbound SDP.

Default setting: no

Fax T38 Return to

Vo i c e

When this feature is enabled, upon completion of the fax image

transfer, the connection remains established and reverts to a voice

call using the previously designated codec. Select yes to enable

this feature, or select no to disable it.

Default setting: no

Field Description