Advanced Topics in SPA9000 Administration
Advanced Topics for SPA400 Voice Mail Service
SPA9000 Voice System Administration Guide
181
A
In the last example, the caller is directed to deposit voicemail in the mailbox ID
7675 on the voicemail account 37683101. It further indicates that the directing
station is at the internal extension 5041. Note that it is assumed that the caller
device (or the ITSP) is faithfully relayed over the REFERRED-BY header.
NOTE
The mailbox ID must be set to the extension number.
The INVITE sent for an internal caller to deposit voicemail is similar, except that the
FROM header also includes a reference parameter, as shown in the following
example:
INVITE sip:mailbox-deposit-url SIP/2.0
Via: SIP/2.0/UDP 172.12.244.56;branch=z9hG4bK-29752ae9
From: Line 1 <sip:[email protected]>;tag=b99e21414928473o2;ref=5031
To: <sip:mailbox-deposit-url>
Call-ID: [email protected]
CSeq: 101 INVITE
Max-Forwards: 70
Contact: <sip:[email protected]>
Referred-By: <sip:[email protected]>;mbid=7675
In the above example, the station wanting to deposit voicemail is at extension
5031; the mailbox ID is 7675 on the account 37683101 (for the station at extension
5041). Note that the referrer is the same as the caller in the last INVITE. In other
words, this INVITE is self-triggered by the SPA9000.
If an EXT-To-DID mapping exists for the calling extension on the line interface, the
user-ID and display name fields of the FROM header is replaced by, respectively,
the mapped DID number and the display name assigned to the phone.
Furthermore, if an EXT-To-DID mapping exists for the called phone, the user-ID
field of the REFERRED-BY header is also replaced by the mapped DID number for
the called extension.
NOTE
For information about how to add an EXT-to-DID mapping, see the <Contact List>
parameter in
Appendix B, “SPA9000 Field Reference.”
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