Basic Features
My Callcentric Portal new updates
4-Way calling
Anonymous call rejection
Bring your own device (BYOD)
Call forwarding
Call hunting
Call return
Call treatments
Call waiting
Call waiting ID with name
Callcentric Android App
Callcentric iPhone App
Calling Card
Caller ID blocking
Caller ID blocking per call
Caller ID delivery per call
Caller ID pass-through
Caller ID with name
Click 2 dial
Custom Caller ID
External Caller ID
DID forwarding
Do not disturb
Fax reception new updates
Free directory assistance
iNum numbers
iNum calling
IVR (Automated Attendant) new
Last number redial
Network down forward
Security: Allowed Calling Areas
Security: IP Whitelist
Security: Maximum Call Rate new
Security: Two-Point Authentication
Simultaneous ringing
SIP Trunking
Speed dial 100
Sub-Accounts (Extensions)
Telemarketer Block new
Travel worldwide with your phone
Unlimited in-network calling
Unlimited SIP URI calling
Voicemail new updates
External Caller ID

With the External Caller ID feature you can have your outbound calls include the Caller ID for a number not on your Callcentric account. We offer two options to pass Caller ID numbers for outbound calls originating from your account:

  • If you would like your outgoing Caller ID to be sent as a number you do not have on your Callcentric account you may open a Trouble Ticket requesting to verify your number, and once verified you will be able to select that Caller ID for your outbound calls within your Preferences.

  • If you are using an IP PBX system, you may open a Trouble Ticket requesting to verify your number or multiple numbers.

    Once verified you may configure your IP PBX to pass any verified caller ID or any DID on your account during an outbound call (within the SIP INVITE message) by including the P-ASSERTED-IDENTITY, P-PREFERRED-IDENTITY, or REMOTE-PARTY-ID headers within the outbound call which will override any default Caller ID settings you have on your account.

    This feature is used primarily by companies operating their own IP PBX to pass a specific number as the Caller ID, such as having each individual extension pass its unique DID rather than the company primary number.


Premium Features
US/Canada phone number
- Pricing varies by product
International phone number
- Pricing varies by country
US/Canada Toll Free number
- $3.95 setup, $3.95 per month
Alternate numbers
- Pricing varies by product
Local Number Portability (LNP)
- FREE for a limited time
Toll Free Number Portability
- FREE for a limited time
Vanity Toll Free Number Search
User Agent Support
snom ONE
What is a User Agent?