Identities
Setting up an identity is mandatory for the phone to operate and is therefore part of the initial setup.
For the initial setup, please also consult the phone's instructions.An identity contains all the configuration data needed to register with a PBX/provider and be able to make calls via it.
Up to 6 identities for different PBXs and/or VoIP providers can be set up for the phone and activated if necessary (also as a fallback). This means the phone can e.g. be operated in parallel for several locations or companies on several PBXs.
Incoming calls are possible via all activated and registered identities. The current standard identity is automatically used for outgoing calls.
If only one identity has been configured, it is automatically the default identity.
However, if more than one identity is configures and enabled, a separate function key is required for each identity to change the default identity. By pressing the function key, the associated identity becomes the default identity. The previous default identity loses this status and is only available for future calls.
Caution: The default identity does not switch automatically.•If a default identity fails, the LED of the associated function key flashes yellow.
•Fallback identities can be set up to maintain operations in the event of failures.
Note: Various functions available for function keys such as speed dialling, do not disturb and call forwarding refer to individual identities. If a function is to be used for all established identities, the relevant function key must configured for each identity (exception: fallback identity).Fallback identity
A fallback identity that has been configured maintains the operation of the system if the actively used identities fail. The phone also transfers the function keys from the failed identity to the fallback identity, provided the functions are also available on the fallback PBX or the fallback provider. The phone can continue to be used as usual.
If an identity fails, the assigned fallback identity is automatically registered on the PBX/provider. This process starts automatically and may take a few minutes. Once a fallback identity is active, the message key lights up and informs the user of the current status.
After the originally used identity is restored, the fallback solution is automatically disabled and the original operation resumes.
Each identity can only have one fallback identity and vice versa. You cannot set up a chain or ring.
The fallback identity must be configured on a different PBX or at a different provider.
Security
Connections are encrypted to prevent listening in.
The connection setup and termination, as well as the signaling is encrypted with SIPS. SRTP (Secure Real-Time Transport Protocol) is used to encrypt call data.
To use SIPS, a certificate must be provided. The certificate must be known to the PBX/provider.
Important: If you are using this on a PBX, the PBX specifies the encryption method. In contrast, you must adjust the encryption settings on the phone.Network
For each identity, various settings for outbound proxy, NAT, various ports, etc. must be made.
The outbound proxy is an intermediate server that processes all VoIP requests and connections going to the provider (except for registration).
You must make settings in the outbound proxy range if:
•the IP address cannot be resolved
•an outbound proxy is present in your own network
•the provider requires an outbound proxy
Requirements for configuration
•Data provided by the provider/administrator for the outbound proxy
NAT (Network Address Translation) converts an IP address, for example of a private network, into an IP address on the public network. This gives all computers that communicate with each other in the private network access to the Internet via a single IP address. However, the internal IP addresses on the private network are not accessible for the Internet.
Important: Every open port on the NAT router is a security risk. Apply the appropriate security measures.Requirements for configuration
•DNS server set up
•STUN server set up
Further help under NetworkPriority for name display - name sources
The phone can determine the name of a phone number, which is shown on the display for incoming/outgoing calls, from various name sources.
These name sources are available:
•Speed dial
•Contacts
•SIP-P-Asserted-Identity
•SIP-To-From
•SIP-Contact
•LDAP
The set order of the name sources corresponds to the priority with which a determined name is used.
Note: The sequence in which the name sources are displayed corresponds to their default settings.Note: If the list is empty, only the phone numbers are displayed.For SIP-P-Asserted-Identity, SIP-To-From and SIP-Contact: if the SIP contact in the SIP header contains a display name, this is the name used in the display.
For speed dialling keys, contacts and LDAP: The phone number in memory is shown on the display. If an entry with a suitable number is found, its name is displayed. If a label has been set for a speed dialling key, this label is displayed.
Support for voicemail boxes in the PBX
A voicemail box configured in the PBX can be linked to the selected identity by specifying the associated voicemail number. Messages and announcements are not stored on the phone, but on the PBX.
Important: Voicemail boxes from the following PBXs are supported:•COMpact 4000
•COMpact 5010/5020 VoIP
•COMpact 5000/5000R
•COMpact 5200/5200R/5500R
•COMmander 6000/R/RX
•COMtrexx
Requirements for configuration
VoIP provider:
•You need to know the user name assigned by the VoIP provider
•You need to know the password assigned by the VoIP provider
•You need to know the Authentication ID assigned by the VoIP provider
•You need to know the IP address assigned by the VoIP provider
•You need to know the pickup code used by the VoIP provider (if supported)
•The VoIP provider must support the different codecs.
PBX:
•You need to know the internal subscriber number for the phone entered in the PBX configuration
•You need to know the password entered in the PBX configuration
•You need to know the IP address set for the phone on the PBX
•You need to know the PBX's IP address
•You need to know the pickup code used by the PBX (if supported)
• The PBX must support the different codecs.
Configuration
Note: Setting up via provisioning is particularly recommended when operating on a PBX.Further help under Using provisioningManual setup:
1.Make settings, input required for:SIP Username, Password, SIP Registrar
2.Enable an identity
Note: Most of the settings listed here can be configured separately for each identity. Only some network settings relating to telephony can be found across identities in the topology area of the network settings (e.g. LLDP, jitter buffer, STUN server).Further help under NetworkWeb interface:
•Identities
Details about the settings are in Identities•Function keys > Choose a key > Function: Identity
Details about the settings are in Function keysPhone:
•Settings > Identities
Details about the settings are in Identities•Settings > Function keys > Choose a key > Function: Identity
Details about the settings are in Function keysProvisioning:
Video: Setup on a Telekom Cloud PBX
Video: Setting up a fallback identity