Mapping Npi/Ton To Sip Phone-Context - AudioCodes Mediant 800B User Manual

User's Manual
Parameter
Number of Digits to Leave
After the above manipulation is done, the device sends the following outgoing SIP 302
response:
SIP/2.0 302 Moved Temporarily
Via: SIP/2.0/TLS 10.33.45.68;branch=z9hG4bKac54132643;alias
From: "MP118 1" <sip:8001@10.33.45.68>;tag=1c54119560
To: <sip:6001@10.33.45.69;user=phone>;tag=1c664560944
Call-ID: 541189832710201115142@10.33.45.68
CSeq: 1 INVITE
Contact: <sip:8005@10.33.45.68;user=phone>
Supported: em,timer,replaces,path,early-session,resource-priority
Allow:
REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SUB
SCRIBE,UPDATE
Diversion: <tel:6005>;reason=unknown;counter=1
Server: Audiocodes-Sip-Gateway-IPmedia 260_UN/v.7.20A.000.038
Reason: SIP ;cause=302 ;text="302 Moved Temporarily"
Content-Length: 0
25.7

Mapping NPI/TON to SIP Phone-Context

The Phone Contexts table lets you configure rules for mapping the Numbering Plan
Indication (NPI) and Type of Number (TON) to the SIP 'phone-context' parameter, and vice
versa. The 'phone-context' parameter appears in the standard SIP headers where a phone
number is used (i.e., Request-URI, To, From, and Diversion). When a call is received from
the ISDN/Tel side, the NPI and TON are compared against the table and the matching
'phone-context' value is used in the outgoing SIP INVITE message. The same mapping
occurs when an INVITE with a 'phone-context' parameter is received.
For example, for a Tel-to-IP call with NPI/TON set as E164 National (values 1/2), the
device can send the following SIP INVITE URI:
sip:12365432;phone-context= na.e.164.nt.com
For an IP-to-Tel call, if the incoming INVITE contains this 'phone-context' (e.g. "phone-
context= na.e.164.nt.com"), the NPI/TON of the called number in the outgoing Setup
message is changed to E164 National.
The following procedure describes how to configure NPI/TON-SIP phone-context mapping
rules through the Web interface. You can also configure it through ini file (PhoneContext)
or CLI (configure voip > gateway manipulation phone-context-table).

To configure NPI/TON-SIP phone-context mapping rules:
1. Open the Phone Contexts table (Setup menu > Signaling & Media tab > Gateway
folder > Manipulation > Phone Contexts).
Version 7.2
Rule 1
5
571 Mediant 800B Gateway & E-SBC
25. Manipulation
Rule 2
-