AudioCodes E-SBC User Manual page 696

CHAPTER 28 Configuring Supplementary Services
To enable the feature, configure the UseFacilityInRequest ini file parameter to 1.
➢
To configure the digit codes for call forwarding services by BRI phones:
1. Open the Supplementary Services Settings page (Setup menu > Signaling & Media tab >
Gateway folder > DTMF & Supplementary > Supplementary Services Settings).
2. Under the BRI To SIP Supplementary Codes group, configure the reason codes for call
forward:
● 'Call Forward Unconditional code' (SuppServCodeCFU)
● 'Call Forward Unconditional Deactivation' (SuppServCodeCFUDeact)
● 'Call Forward on Busy Code' (SuppServCodeCFB)
● 'Call Forward on Busy Deactivation' (SuppServCodeCFBDeact)
● 'Call Forward on No Reply Code' (SuppServCodeCFNR)
● 'Call Forward on No Reply Deactivation' (SuppServCodeCFNRDeact)
3. Click Apply.
The call forward codes must be configured according to the settings of the softswitch
(i.e., the softswitch must recognize them).
Below is an example of an INVITE message sent by the device indicating an unconditional call
forward ("*72") to extension number 100. The code is configured by the SuppServCodeCFU
parameter.
INVITE sip:*72100@10.33.8.53;user=phone SIP/2.0
Via: SIP/2.0/UDP 10.33.2.5:5060;branch=z9hG4bKWDSUKUHWFEXQSVOUVJGM
From: <sip:400@10.33.2.5;user=phone>;tag=DUOROSXSOYJJLNBFRQTG
To: <sip:*72100@10.33.8.53;user=phone>
Call-ID: GMNOVQRRXUUCYCQSFAHS@10.33.2.5
CSeq: 1 INVITE
Contact: <sip:400@10.33.2.5:5060>
Supported: em,100rel,timer,replaces
Allow:
REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SU
BSCRIBE
User-Agent: Sip Message Generator V1.0.0.5
User-to-User: 31323334;pd=4
Content-Type: application/sdp
Content-Length: 155
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