To configure an automatic reminder email to be sent once your SIP-system balance drops below a set amount, you should go to the Settings section - SMS Sender tab at http://sms.sip-system.com/members/settings#sms and activate low balance warning  by checking the "Low Balance Warning" box, then specify the amount of threshold balance in the " Balance amount" field and select a period of time (in hours) to send re-notices in the " Re-warning" field.

Do not forget to set your time zone in the Profile settings in order to have your delivery reports and sms campaigns scheduled correctly.

1. You do not have SIP-system account. Create it here
2. You entered a wrong password. Use a password reminder.
3. You tried to broadcast SPAM text messages repeatedly, as sending SPAM with help of SIP-system is strictly forbidden, your account has been blocked.  More about our anti-spam policy . Contact us for further details.

To convert SIP-system balance to another currency please click on Settings and in the General tab select the necessary currency sign. Currency.

The more you will send, the more you will save on each text message. We use the following discount scheme in accordance with monthly volume of SMS traffic:

Discount does not apply to users with special prices.

Contact us for more details.

Paid funds will get added to your account balance instantly or within 1 - 2 hours maximum once we have received your payment.  Otherwise please contact us notifying of your payment details.  

The most possible reason is that you sent a text message of more than 160 GSM or 70 Unicode characters and it was split in multiple parts each of them charged as a separate SMS.

! Please note that even if you used only one Unicode character in the body of your message, the entire text messages will be considered as Unicode.

Check the price of one plain text message and the list countries we cover in the Pricing section.

Using SIP-system you will be charged for every sent text message as we will be still trying to deliver your messages.

! Keep the list of your subscribers up-to-date to have the delivery range close to 100%.

We do refund spent SMS-credits by adding them to the SIP-system account upon the user request.

To get spent credits refunded please contact us providing the following information:

• The description of your issue
• Date and time of your delivery
• Used Sender ID
• E-mail under which your SIP-system account is registered 

However we can’t provide you a refund

- if you did not  follow the rules of creating text message, sender ID, recipients phone numbers format;

- if you ignored our warning notifications sent by e-mail or posted in the SIP-system user panel;

- due to circumstances beyond our controlsuch as the mobile phone is switched off or out-of-coverage area, phone number does not exist etc.

We also do not satisfy any refund requests from users trying to broadcast SMS-SPAM by using our service. Please find out more about our ANTI-SPAM policy here.

Possible reasons:

• your message is queued at the pre-moderation to avoid sending SMS-spam or scam as your recipients list contains more than 500 telephone numbers, text message content or sender ID contains stopwords or shortcodes. All such SMS require pre-moderation .
  ! Please wait, pre-moderation will take up to 5 minutes in working days and up to 1 hour in holidays or weekends.
   
• SMS was stopped as considered to be SPAM or scam.
  ! Please note that we do not allow using shortcodes, cellular carriers names, bank names etc. in your text message body or Sender ID unless agreed beforehand.
   
• You have not completed some steps of your SMS campaign.
  ! Please edit your SMS campaign and check that it includes your recipients’ telephone numbers.
   
• You have not enough SMS-credits to have your text message to be sent.
  ! Buy SMS-credits in the Billing section.

Usually, SIP-system starts sending out within 1 minute. But in some cases text message can not be delivered for some reasons:

• Recipients phone number format error. Phone number does not exist or was given not in the international format.
  ! Phone number must belong to one of the mobile carriers, be in international format (consists of a plus sign, then a country code followed by the area code without the first '0′ of the number and then the mobile phone number). Any other symbols, characters or spaces are not allowed.
   
• Sender ID error.
  ! Sender ID must be up to a maximum of 11 characters and  to a maximum 12 digits and contain characters from a-z, A-Z, 0-9, and _ (underscore). Other characters or Unicode symbols may cause messages to fail, do not use them (more information find in Text Message and Sender ID Options -> Sender ID Format) .
   
• Sender ID blacklistedby your message recipient or some antispam software for mobile phones is used.
   
• Recipients cellular phone number is roaming.
  ! Please wait, delivery time can be as quick as to several hours. In some cases text messages can not be delivered to roaming mobile phone number as of Inter-Operator Roaming  issues.
   
•  Mobile phone is switched off or out-of-coverage area.
  ! Please wait. It will take up to 48 hours your message to be delivered.
   
• Too long text message.
  ! Please avoid sending multi-part text messages greaterthan 6 parts long as some telephone models refuse such SMS.
   
•  Recipient refused to receive  text messages.
   
• Call Forwarding.Your recipient has selected text messages to be forwarded to unavailable/not existing phone number. 

Sending can also get stuck due to 

• High server, system or carriers load  
  !  On the eve of holidays we recommend that you schedule your SMS dispatch beforehand.

SIP-system has a TPS (transactions per second) of 20 SMS.

We do support sending text messages to GSM phones, expect for the US where we do also support sending to CDMA.

Due to the way our routing is configured anything on a CDMA prefix in the US is routed via our delivery partner that uses a static UK sender ID and does not provide delivery reports. This is necessary in order to reach the CDMA networks, due to the differing technology they use (messages sent to GSM networks, will use normal dynamic routes with delivery reports).

Note that AT&T blocks all alphanumeric and US sender IDs, so you'll need to use a foreign international numeric sender ID to deliver reliably. Alternatively we can put all your traffic via the CDMA routing (no delivery reports).

The route we use is very high quality, just because there are no delivery reports it doesn't affect delivery to valid, active numbers in USA.

Any information provided through our service is maintained as private and strictly confidential.

We only use information you have submitted to provide you with information, services, and other opportunities. We do our best to protect your information against unauthorized access or release.

SIP-system allows using dynamic alphanumeric sender names (sender ID). This means that you can set any company name or number you want in the sender field rather than just a phone number without prior registration.

This alphanumeric originator, or sender ID, can contain characters from a-z, A-Z, 0-9, and _ (underscore). Some characters for example such as  {| , ; % ' # % *! ^ = [ ] ( ) / ~ < >}" or other Unicode symbols may cause messages to fail, avoid using them.

Originator can be up to a maximum of 11 characters for alpha names and  to a maximum of 12 characters for numeric names.

The dynamic  Sender ID feature only applies to network operators who support this feature. Please follow warningnotifications sent by e-mail or posted in the SIP-system user panel.

You can send up to 160 GSM or 70 Unicode characters in a single text message. If your message is longer, the message will be split into several separate text messages.

The maximum number of characters that can be used in each part of a multi-part message is 153 for GSM and 63 for Unicode per text. For example, in two text messages this is 2 x 153 = 306 and in three text messages this is 3 x 153 = 459 and so on.

You will be charged for each part of such message.

Most modern phones will re-assemble the separate parts of multipart SMS and display it as one long text message. But avoid using text messages longer than 6 SMS as some telephones do not support too long messages yet and your text message will not be delivered or will be delivered partly.