The Communications Server 2007 R2 Enterprise pool, or a Standard Edition server functioning as a pool, must be configured with a location profile. The location profile translates dialed numbers into E.164 format for reverse number lookup and call routing. The location profile defines the default set of normalization rules that are applied to phone numbers dialed by users in the pool. The normalized phone numbers are used to perform reverse number lookup, which is the process of finding a recipient's SIP URI from his or her phone number. If this lookup fails, the call is routed according to the global routing rules.
In Office Communications Server 2007 R2, location profiles can
also be assigned to individual users. If a location profile is
assigned at both the user level and for the user’s homed
server/pool, the per-user location profile takes precedence. For
details about per-user location profiles, see
When you deploy Enterprise Voice, you specify one or more initial olocation profiles. You can change the default location profile for the pool. The location profile you select as the default should include all phone numbers to which calls can be routed for the pool. It can be any location profile that has been previously created at the global level for the forest. For details about creating a location profile, see Creating and Configuring Location Profiles.
In addition to specifying a default location profile for the pool, you can also change settings for Microsoft Office Communicator Phone Edition. The procedures in this section discuss these settings:
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Enforce phone lock.Selecting this option locks the Office
Communicator Phone Edition desktop device. The Office Communicator
Phone Edition desktop device phone can be locked for purposes of
security. If you choose to enforce the phone lock, it is enforced
only in the pool for which it is configured. If you select this
option, also specify the following:
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Minimum PIN length.This is the minimum number of characters
for a valid personal identification number (PIN) for a valid PIN.
Users create PINS to lock and unlock their Office Communicator
Phone Edition desktop devices.
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Minimum time-out.This is the minimum length of time in
minutes that the phone is idle before the it locks itself.
-
Minimum PIN length.This is the minimum number of characters
for a valid personal identification number (PIN) for a valid PIN.
Users create PINS to lock and unlock their Office Communicator
Phone Edition desktop devices.
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Quality of Service (QoS).For an acceptable quality of
service for Enterprise Voice, the IP network must assure that
packet loss, delay, jitter, and bandwidth fall within acceptable
ranges. Voice communication in particular is intolerant of packet
loss and delay and requires greater bandwidth than data
transmissions. The Voice QoS value and 802.1p Voice settings work
together to enable your IP network to assign priority to audio
packets, based on the settings you specify:
- The
Voice QoS valueallows you to assign higher priority to audio
packets at routers performing Network Layer IP-based packet
routing. The default value of 40 represents an IETF Differentiated
Service Code Point (DSCP), which is used to mark packets so that
routers can provide appropriate per-hop behavior based on the class
of traffic. For optimum quality of service, it is recommended that
you do not change the default value.
- The
802.1p Voice settingallows you to assign higher priority to
audio packets at the nodes performing Data Link Layer switching
within a LAN segment. The default value is 0. Assigning a higher
value assigns higher priority to audio packets. For optimum quality
of service, it is recommended that you do not change the default
value.
- The
Voice QoS valueallows you to assign higher priority to audio
packets at routers performing Network Layer IP-based packet
routing. The default value of 40 represents an IETF Differentiated
Service Code Point (DSCP), which is used to mark packets so that
routers can provide appropriate per-hop behavior based on the class
of traffic. For optimum quality of service, it is recommended that
you do not change the default value.
-
SIP security.The SIP security settings are used to specify
transport and authentication requirements for IP phones connecting
to Communications Server 2007 R2. If you do not configure a policy
setting, an IP phone can use any transport, but if it does not use
TLS and the server authenticates users, the phone must use either
NTLM or Kerberos authentication.
Use the following procedures to manage pool-level settings for Enterprise Voice:
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Viewing
Pool-Level Properties
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Assigning a
Default Location Profile
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Configuring
Phone Lock for Office Communicator Phone Edition
-
Configuring
Quality of Service for Office Communicator Phone Edition
-
Configuring
Security Settings for Office Communicator Phone Edition
For details about deploying Enterprise Voice, see