PDMS-SP portal, the term ITSP describes the logical entity providing the SIP Trunk service to the
device. When you use the device with an IP PBX, the IP PBX takes the place of the ITSP if it is the
entity providing the SIP Trunk account credential and connectivity to the device.
ITSP Profiles and SP Services
Each ITSP configuration is grouped together as an ITSP Profile, referred to as ITSP Profiles A, B, C,
and D; SP service account specifics are grouped under the heading SPn Service, where
n
= 1, 2, 3 or
4.
An ITSP Profile includes such parameters as ProxyServer, OutboundProxy, and DigitMap, but
doesn’t include account-specific parameters.
An SP Service includes account-specific parameters such as AuthUserName (usually the phone
number of the account), AuthPassword, CallerIDName, and X_ServProvProfile. The
X_ServProvProfile parameter connects the service subscriber with the service provider.
If the SP Services use the same ITSP, then you only need to configure one ITSP Profile with all SP
Services referred to the same profile.
From the device point of view, the SP
n
Service using ITSP Profile
X
is enabled with the following
minimal settings:
Table 12-1
Service Provider Minimal Settings
Parameter Value
ITSP Profile X > SIP > ProxyServer Not Blank
Voice Services > SPn Service > Enable Yes
Voice Services > SPn Service > AuthUsername Not Blank
Where
X
= A or B, and
n
= 1, 2, 3, or 4. Otherwise, the service is considered disabled.
ITSP Driven Distinctive Ringing
The device offers 10 ring and 10 call-waiting tone patterns in each ring profile.
These patterns are numbered from 1 to 10. Each pattern also comes with a configurable name. You
can assign a different default ring to each trunk on the device.
An ITSP can tell the device which ring to use by name for a call routed to SP1/SP2 by inserting
an Alert-Info header in the SIP INVITE sent to the device. The Alert-Info must include a URI. For
example:
Alert-Info: <http://www.xyz.com/some-folder/bellcore-dr4>
When the device receives this information, it looks for a ringtone name or call-waiting tone name in
the ring profile that matches the Alert-Info URI. Ringtone names are compared case-insensitively. If
a match is found, the device plays the corresponding ring or call-waiting tone. Otherwise, the device
plays the default ring.
RTP Statistics - the X-RTP-Stat Header
When ending an established call, the device can include a summary of the RTP statistics collected
during the call in the SIP BYE request or the 200 response to the SIP BYE request sent by the peer
device.
ITSP Driven Distinctive Ringing
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