What are the SMS delivery status codes for messages that are sent to India? [updated 2019]


Why are SMS messages to India undelivered?

Problem/Symptoms

  1. Why are my SMS messages to India undelivered?
  2. Why can't I send SMS in India?
  3. Error code 1 Unknown
  4. No delivery in India
  5. Very low delivery in India
  6. Undelivered in India
  7. How do I get delivery in India?
  8. How can I register with the NDNC?

Cause

The most probable cause for this is that your recepients are registered with India's NDNC (National Do Not Call) list.

Context

India is a very complex market as far as regulations are concerned and if you do not comply with them your SMS will not be delivered. Very few numbers in India are not registered with the NDNC register, so you may still see some small levels of delivery, but most of your SMS will be undelivered.

You can register your Sender ID to bypass this filter. The requirements for this are:
You are sending transactional messages which are either user-generated or expected
A 6 - Alphanumeric sender ID and SMS template for registration
Minimum 25k SMS per month
Resolution

1. Check the destination number on the Telecom Regulatory Authority of India registry using the following search tool: http://www.nccptrai.gov.in/nccpregistry/search.misc

N.B. Omit India International prefix 91


Registration is not immediate - if you need this process expediting, please contact (BULK SMS INDIA Support).


View a list of delivery status codes from BULK SMS INDIA. In case of an SMS delivery failure, if the status code is Permanent, do not attempt to resend the SMS message.
Table 1. BULK SMS INDIA delivery status codes for India



CARRIER_ERR_DES
Description
Permanent/Temporary
Delivered to Handset
Message was delivered to the handset.
UNKNOWN
Unknown Network Error at the SMSC
Temporary
Unknown subscriber
Message is rejected because there is no directory number for the mobile subscriber or service is temporarily not available for the subscriber from the end carrier
Permanent
Service temporary not available
Intermittent network error in the Short Message Service Center (SMSC)
Temporary
Unknown subscriber, System failure
System failure due to Unknown subscriber
Permanent
Absent subscriber SM
Subscriber cannot be reached at the time of broadcast or unknown subscriber
Temporary
Unknown equipment
Network error in Telco
Temporary
Illegal subscriber
Invalid subscribers
Temporary
System failure (Network timeout)
Network timeout at the SMSC level
Temporary
MS not equipped (Teleservice not provisioned)
Mobile switching (MS) center not equipped to teleservice
Temporary
Illegal equipment
Message rejected because the MS was black-listed
Permanent
Call barred
Messages blocked by the end user / carrier
Permanent
System failure
System failure in the MT network.
Temporary
SM Delivery fail (Subscriber busy for MT SMS)
Short Message delivery fail due to the Mobile Termination because of subscriber busy
Temporary
SMS lower layer not provisioned
SMS lower layers capabilities not provisioned: message rejected due to MS not being able to support the SMS
Temporary
System failure (Error in SMT)
Failure in SMSC during termination
Temporary
Facility not supported
The message is rejected due to non provision in SMSC
Permanent
Delivery fail (No interworking module available)
Network issue at the SMSC level
Temporary
Delivery fail (VP exceeded)
Delivery failed due to message expiry
Temporary
Absent subscriber
Absent subscriber due to phone being switched off,due to phone out of coverage,due to roaming restriction/restricted area
Temporary
Delivery fail (Subscriber busy)
Delivery failed due to the subscriber was in busy mode
Temporary
System failure (No subscriber reply)
Failure due the no response from the SMSC
Temporary
Subscriber busy for MT SMS
Subscriber busy during message termination
Temporary
Delivery fail
Message failed due to the network error with SMSCs
Temporary
Message waiting list full
Re-try timeout in between the networks
Temporary
System failure (remote abort)
Network error at the far end operator
Temporary
Teleservice not provisioned
New / non-existent number series
Temporary
PLMN system failure
Error in SMSC authentication failure
Temporary
HLR system failure
The Home Location Register is a database. It provides routing information for MT (Mobile Terminated) calls and SMS (Short Message Service). If this information is not accessed by the carriers it will results in HLR timeout
Temporary
VLR system failure
The Visitor Location Register is a temporary database of the subscribers who have roamed into the particular area which it serves. Each base station in the network is served by exactly one VLR, hence a subscriber cannot be present in more than one VLR at a time. If this information is not accessed by the carriers it will results in HLR timeout
Temporary
Previous VLR system failure
Connectivity issue with VLR and HLR
Temporary
Controlling MSC system failure
Mobile switching center controlling failure
Temporary
VMSC system failure
Error in VMSC authentication failure
Temporary
Network system error
Temporary
SM delivery failure
Unknown SMSC failure
Temporary
Memory capacity exceeded
Memory capacity exceeded on the MT handset
Temporary
Equipment protocol error
Message not compatible with short message protocol
Temporary
Equipment not SM equipped
Messaging was not equipment for delivery
Temporary
System failure (unexpected data value)
Message not compatible with short message protocol
Temporary
SM loop prevention
Short Message looping route failure
Temporary
Barring service active
Barring Service activated by the end customer / Operator
Permanent
Operator barring
Messages blocked by the carrier
Permanent
No paging response via the MSC
No response from Mobile switching center
Temporary
IMSI detached
Mobile network to which it was connected. The IMSI detach procedure informs the network that the Mobile Station is switched off
Temporary
Roaming restriction
Roaming not provisioned
Temporary
Deregistered in the HLR for non-GPRS
Unable to connect to Home Location register
Temporary
MS purged for non-GPRS
A request for a roaming number concerning a subscriber whose record has been discarded from the VLR by the Super-Charger database management function results in a “MS Purged” indication from the VLR to the HLR, so that the HLR subsequently can set the “MS Purged for Non-GPRS” flag for the concerned subscriber, thereby preventing subsequent attempts to reach the concerned subscriber with mobile terminated calls or short messages.
Temporary
No paging response via the SGSN
Service GPRS service node
Temporary
GPRS detached
The mobile-station-Not-Reachable-Reason (MNRR) indicates the reason why the recipient SMe is absent from the network. This indicator,maintained by the HLR, is either cleared or contains one of the following values: no paging response via the MSC, no paging response via the SGSN, IMSI detached.
Temporary
Deregistered in the HLR for GPRS
Routing information for MT (Mobile Terminated) calls and SMS (Short Message Service). If this information is not accessed by the carriers it will results in HLR timeout
Temporary
MS purged for GPRS
Mobile station
Temporary
Unidentified subscriber via the MSC
Unknown subscriber in Mobile Switching Centre (MSC)
Temporary
Unidentified subscriber via the SGSN
Unknown subscriber in Serving GPRS Support Node (SGSN)
Temporary
EIR system failure
Equipment identity register fail at HLR
Temporary
Delivery fail (SM delivery failure)
Short Message (SM) delivery fail
Temporary
Protocol error (MS Protocol error)
Mobile station / tower network error
Temporary
MS not equipped
Mobile Station not equipped to deliver the message
Temporary
Error in MS
Network issue at the SMSC level
Temporary
SMS lower layer capabilities not provisioned
Message rejected due to MS not being able to support the SMS
Temporary
System failure (unexpected data value)
Message content not support by the handset
Temporary
Delivery fail (SM loop prevented)
Short Message delivery failed due to message routing issue
Temporary
Unauthorised message originator
Blocked / Not registered Sender id
Permanent
Unauthorised message originator-Barring service
Barred / Blocked / Not registered Sender id
Permanent
Unauthorised message originator-Operator barring
Operator Barred / Blocked / Not registered Sender id
Permanent
GPRS connection suspended
Network suspended error
Temporary
IMSI unknown
International Mobile Subscriber Identity Unknown
Temporary
GPRS subscription unknown
GPRS subscription if the HLR indicates that there is an error in the type of subscription (i.e. SGSN requests service for a non-GPRS only subscriber). The HLR may also send this error in the MAP SEND AUTHENTICATION INFORESPONSE message.
Temporary
MNP other operator not allowed
Mobile Number Portability not allowed
Temporary
Measured no paging response via the MSC
No response from Mobile switching center
Temporary
Measured no paging response via the SGSN
No response from Mobile Serving GPRS Support Node
Temporary
Illegal MS (HLR Access Denied: MS Denied)
The Home Location Register is a database. It provides routing information for MT (Mobile Terminated) calls and SMS
Temporary
Absent subscriber(HLR Access Denied: Postponed)
Subscriber cannot be reached at the time of broadcast or unknown subscriber
Temporary
Illegal MS (Address vacant)
Message rejected due to an error occurring within the MS at reception of a short message (lack of address).
Temporary
Illegal MS (Address translation failure)
Message rejected due to an error occurring within the MS at reception of a short message (lack of Address translation).
Temporary
Service temporary not avail.
Temporary network error
Temporary
System failure (Network failure)
Network error at the SMSC level
Temporary
No Page Response (Out of coverage area)
Network error
Temporary
Absent subscriber (No acknowledgment)
Absent subscriber due to phone being switched off,due to phone out of coverage, due to roaming restriction/restricted area without acknowledgment
Temporary
Absent subscriber(Destination resource shortage)
The message is rejected because there was no paging response , the IMSI record is marked detached, or the MS is subject to roaming restrictions
Temporary
Absent subscriber (SMS delivery postponed)
User's mobile number not reachable or out of network coverage area.
Temporary
Absent subscriber (Destination out of service)
Mobile number barred at the carrier end
Temporary
Unexpected data value (Encoding problem)
Message termination problem due to handset issue
Temporary
Call barred (SMS termination denied)
Messages blocked by the carrier
Permanent
Call barred (SMS not supported)
SMS not support for the handset
Permanent
Unexpected data value
Network error
Permanent
Reserved
Unknown network error at the SMSC
Temporary
SMS Request Timeout (no response from HLR)
Message delivery failed due to Home Location Register timeout
Temporary
SMS Delivery Timeout (no response from MSC)
Message service centre connection error (network issue)
Temporary
Invalid IDI address received
Invalid mobile numbers
Permanent
Error in MSC address translation
Unable to translate the Address in Mobile switching center
Temporary
No acknowledgment from Handset
Delivery confirmation was not acknowledged by the end customers Handset
Temporary
MTP failure
Unknown network error at the SMSC
Temporary
User error: MIN Mismatch
Mismatch in mobile identification number (MIN) will result in MIN mismatch
Temporary
User error: Resource shortage
Network failure in SMSC
Temporary
User error: System failure
Network Failure in SMSC
Temporary
Invalid SenderId
Blocked / Not registered sender id
Permanent

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