VoIP Telephone

Service Notices

Maintenance Scheduled
You may experience service interruptions on March 8/31/2018 in unit 4 and unit 10 while crews upgrade equipment.

Sonora (209) 588-9601
Groveland (209) 962-6373


Service Notices

VoIP Telephone

Business Woman on Phone

Sierra Nevada Communications Voice Over IP telephone service includes:

  • Unlimited Local Calling
  • Unlimited Nationwide Calling
  • Unlimited calls to Canada
  • Clear, stable phone calls
  • Residential and Business service available
  • 17 popular calling features including voice mail
  • Online control panel. Access your account and voicemail from anywhere!

Voice Over IP (VoIP) is a modern telephone service that uses the internet to make phone calls instead of using the existing telephone exchange.  A special converter will transform the analog signal from your existing handsets into a digital signal suitable for transmission over the internet.


Calling Features

SNC VoIP Calling Features
Address Book Store your contacts in an online address book via your control panel.
Caller ID* Know who’s calling you before you answer!
Call Waiting Calls can come in even when you’re on another call. Answer it without disconnecting the original call!
Call Forwarding Redirect incoming calls to another phone number.
Anonymous Call Rejection Discards incoming calls that intentionally block the caller’s name/number from showing on your caller ID. Goodbye telemarketers!
Call Block Discards incoming calls from phone numbers you specify.
Outbound Caller ID Block Block your caller ID from showing when making outbound calls.
Do Not Disturb Block all incoming calls at any time!
Find Me Forwards you calls to up to 5 alternate phone numbers.
Selective Call Forward Forward specific callers to specific locations.
Three Way Calling Conference call with two other parties at the same time.
Voicemail Whether you’re away, on the line, or too busy to answer, SNC voicemail will take your calls. With online access to your account you can access your voicemail anytime, from anywhere! And with many advanced features, using voicemail has never been easier!
Voicemail Message Indicator A distinctive dial tone alerts you that you have messages in your voicemail box.
Voice Mail to Email** Have messages emailed to you as an attachement.
Speed Dial Call friends or family simply by dialing a two digit number!
Online Account Management View your call history, manage your phone options, manage voicemail options, listen to voicemail, and much more with online account management!

* Residential phone must be equipped with caller ID capability. Caller's phone number will appear where available.

** Voicemail emails may not be accepted by all email providers. If you do not receive your new Voicemail messages via email, try adding This email address is being protected from spambots. You need JavaScript enabled to view it. to your email account contact list to unblock the email notifications. If you still cannot receive messages you may be unable to use this feature with your current email provider.



Yes. Your directory listing can be Listed, Non-Listed, or Non-Published. If listed, it will be printed in the directory local to the phone number, not the address.
Yes. Your service includes enhanced 911 (E911) service, which delivers address specific call back information for emergency 911 services. For details please download our E911 disclosure.
No. Our installation technician will perform all the testing necessary to confirm your VoIP phone service is working correctly. Calling 911 when it is not an emergency could create unnecessary legal issues for you.
In most cases you can keep your current number. SNC can process a Local Number Portability (LNP) transfer request to move your phone number from your current local exchange carrier to SNC.
No, in most circumstances cellular phone numbers cannot port from a wireless provider to VoIP. This limitation applies to all VoIP providers, not just SNC.
No, the ringmaster number must be converted to a regular phone line by the existing carrier before it can port.
If for some reason we are unable to port an existing number, the order will be clarified or terminated.
The voice mailbox allows up to a total of 10 minutes of voice messages. Once the mailbox gets to 10 minutes, all new messages will be blocked.
A busy signal.
No, calls are archived for 3 months.
Choppy calls are usually caused by high latency or packet loss. High latency is when it takes too long for the data to be transmitted over the Internet connection. Packet loss is when information is lost over the Internet connection. Either symptom can be caused by ISP problems, Internet congestion, or heavy bandwidth usage, such as online gaming or file sharing. You can determine if there is any problem by using any number of Internet speed tests.
The federal government and most states provide a Do Not Call Registry where you can register your phone number. Please visit http://donotcall.gov for more information.

SNC Location Map
Our Address:
16913 Amy Drive
Sonora, CA 95370
Mailing Address:
PO Box 281
Standard, CA 95373
Hours of Operation:
Mon. to Fri. 8am to 5:00pm

Tuolumne County Service Area: Cable TV, high speed internet, and VoIP telephone service areas include the Hwy 108 communities of Sonora, Columbia, Jamestown, Soulsbyville, Twain Harte, Strawberry, Longbarn, Cold Springs and Pinecrest, and the Hwy 120 communities of Big Oak Flat, Groveland, and Pine Mountain Lake. Not all services available everywhere

Customer Service



Online Support

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Proud member of:
Member of the Sierra Professional Association Member of TuCare