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Setting T1/E1 Parameters

Navigate to: Configuration > TDM > T1/E1

 and adjust the following settings -

1.

  Set 

Telephony Port Interface Side

: This should be Terminal if your PBX is set to Network or Network if your PBX is set to Terminal. 

2.

  Set

 line Encoding and framing

: This should match your PBX settings. 

3.

  Click 

Submit

 to save settings. This will prevent loss of configuration. Do not restart the gateway.

Navigate to: Configuration > TDM > General 

and adjust the following settings -

1.

  Set 

PCM Coding: 

uLaw or aLaw to match your PBX setting. 

2.

  Click 

Submit

 to save settings. This will prevent loss of configuration. Do not restart the gateway.

Setting Microsoft

®

 Office Communications Server 2007 Specific Parameters

Navigate to: Configuration > VoIP > General

, and adjust the following setting -

1.

  Set 

Transport Type

: TCP. 

2.

  Click 

Submit

 to save settings. This will prevent loss of configuration. Do not restart the gateway.

Navigate to: Configuration > VoIP > Media

, and adjust the following settings -

1.

  Set 

Audio Compression

: G.711u or G.711a to match your Microsoft

®

 Office Communications Server 2007 setting. 

2.

  Set 

Signaling Digit Relay Mode

: Off. 

3.

  Set 

Voice Activity Detection

: Off. 

4.

  Set 

fax IP-Transport Mode

: G.711-Passthrough. 

5.

  Click 

Submit

 to save settings. This will prevent loss of configuration. Do not restart the gateway.

Navigate to: Configuration > IP

, and adjust the following setting -

1.

  Set 

BOOTP Enabled

: No. 

2.

  Click 

Submit

 to save settings. This will prevent loss of configuration. Do not restart the gateway. 

Set 

Telephony Port Interface Side

 to 

Network or Terminal, using the opposite 
setting from your PBX setting

Set 

Transport Type

: TCP

Set 

line Encoding

 and 

framing

 to match 

your PBX settings

Set Audio Compression

: G.711u or 

G.711a to match your Microsoft

®

 Office 

Communications Server 2007 setting

Set 

Signaling Digit Relay Mode

 and 

Voice Activity Detection

: Off

Set 

fax IP-Transport Mode

: G.711 

Passthrough

Set BOOTP Enabled:

 No

Set 

PCM Coding

: uLaw or aLaw to 

match your PBX setting 

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