Cisco/Linksys ATA Adapter FAX Settings

How To Configure the Cisco/Linksys ATA Adapter for FAX -

Menu -> ****

Dial 73738# (RESET#)

Dial ****110# (IP Assigned)

you need to find out what method the provider uses for T38 (FEC or redundancy method)

Set fax machine to "intl mode" which slows it down to 9600 baud.

g711 faxing checklist

|SIP|

RTP Packet Size: 0.020 from 0.030

|Line 1| and |Line2|

* Preferred Codec: G711u

* Use Pref Codec Only: yes

* Silence Supp Enable: no

* Silence Threshold: medium

* Echo Canc Enable: no

* Echo Canc Adapt Enable: no

* Echo Supp Enable: no

* FAX CED Detect Enable: yes

* FAX CNG Detect Enable: yes

* FAX Passthru Codec: G711u

* FAX Codec Symmetric: no

• FAX Codec Symmetric: yes

* FAX Passthru Method: None *

• FAX Passthru Method: ReINVITE

* FAX Process NSE: no

• FAX Process NSE: yes *

* Network jitter buffer: very high

• Network Jitter Level: Extremely High

• Jitter Buffer Adjustment: disable

* Call Waiting: no

* 3 Way Calling: no

* Echo Canceller: no

* Silence suppression: no

* Preferred Codec: G711u

* FAX enable T38: no

• FAX Enable T38: yes (make FAX Passthru Method ReINVITE also)

• FAX T38 Redundancy: 1 <-- this sets the number of duplicate frames sent

• FAX Disable ECAN: yes

• FAX Tone Detect Mode: callee only <-- some providers require this, trial and error is suggested to determine your best setting.

* Use pref. codec only: yes