The licensing for SIP phones is enabled through the IP User Licenses field in the License and Option Selection form.
Ensure that the SIP device is registered with the 3300 ICP. Ensure that only one instance of the prime line(s) is registered with the 3300 ICP. SIP endpoints must not register for shared line appearances.
Ensure that the IP user licenses are entered in the License and Option Selection form. SIP phones require an IP User license but not a device license.
Ensure that Class of Service, Interconnect Restriction, and Intercept Handling is programmed for each generic SIP phone.
Ensure that either Call Forward No Answer (CFNA) or system rerouting is programmed for SIP phones. This ensures that calls receive predictable behavior because the 3300 ICP may not always be aware of the SIP device state due to the nature of the SIP protocol.
To program SIP telephones, use the following forms:
To program the SIP device as a multiline set, enable the "Replace System based with Device based In-Call Features" field. Complete the other fields as required. Additionally, at least one of the keys of the SIP device must be configured as Multicall to its own prime DN or Key System to another DN in the Multiline Set Keys form.
To support Callback, Busy Override, and Camp-on on SIP phones, set the "Enable Digit Collection During Busy or Alerting State" option to "Yes".
To enable distinctive ring tones for internal calls, external calls, and callbacks to SIP phones, set the "Distinctive Ring Tones" option to "Yes".
Set the method that the system should use to support Call Park and Retrieve for SIP phones. See the "Support for Call Park" option in the Device Capacities form.
To prevent the system from updating SIP phone displays with connected party name and number information during transfers, conferences, and call forwarding scenarios, set the "Allow Display Update" to "No" .
Multiline
IP Sets form
Complete the Device Type, Directory Number, User
PIN, Confirm User
PIN, Interconnect Number, and Tenant Number fields.
The following device types are supported: 5302 IP Phone, Generic SIP Phone, 5603 SIP, 5604 SIP, and 5610 SIP.
Login PIN is the SIP authentication password. The username is the DN.
Multiline
Set Keys form
To program the 5302 IP phone as a multiline
set, program Button Number 2 with a Line Type of "Multicall."
Enter the directory number of the 5302 IP Phone in
the Button Directory Number field.
To program a generic SIP device as a multiline set,
program additional buttons with a Line Type of "Multicall."
Enter the directory number of the generic SIP device in the Button Directory
Number field. Note that entering numbers others than DN
of the device is not supported.
Multiline
Appearance Groups form (Optional)
Change the ring type at each telephone where this number appears.
Change the group type from "key system" to "multicall"
or vice versa.
Default
Account Codes form (Optional)
Create a default account code number that will appear in all SMDR
records for the station.
Station
Attributes form
Assign a Class of Service, Class of Restriction, and Intercept Number
to the directory number of the telephone. Change the SIP Device
Capabilities number, if applicable.
(Optional) Assign a Default Account Code Index number.
User
and Device Configuration form
Use the User and Device Configuration
search field to locate the directory number that you assigned to the device.
Assign a name, department, and location to the directory number. Enter
the SIP Device Capabilities number, if applicable.
SDS Form Sharing
Ensure that the SIP Device Capabilities form is shared. The default
is "All Cluster Members." You can also restrict records from
being shared by specifying the SIP Device Capabilities Numbers not to
share in "Records Not Shared" portion
of the form.
Class
of Service Options
Set "Public Network Access via DPNSS"
to Yes in the COS of SIP Phones to allow calls over
LS trunks.
Disable the Auto Camp-on Timer to allow unsupervised call transfers
from the SIP device to camp on to busy station.
Notes:
If no telephone directory name is programmed for a SIP device on the 3300 ICP, the system will default to the SIP display name. For some SIP devices, the SIP display name can be provisioned. For others, such as the 5302 IP Phone or 5610 SIP, the display name cannot be provisioned and defaults to the "username," which is typically the DN of the device. To prevent users of generic SIP devices from programming their own display name, you should always add an entry and provide a name for all of these devices in the Telephone Directory form.
If you delete telephones, you must also delete the corresponding directory entries and voice mailboxes.
