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Glossary

MSISDN (Mobile Station International Subscriber Directory Number)

An MSISDN number uniquely identifying a subscription in a GSM or a UMTS mobile network. An MSISDN is the phone number associated with a single SIM card, in other words, the number you call or send an SMS message to. The ITU-T recommendation E.164 limits the maximum length of an MSISDN to 15 digits. 1-3 digits are reserved for country code. Prefixes are not included (e.g., international dialing codes such as 00 or + prefixes). Minimum length of the MSISDN is not specified by ITU-T but is instead specified in the national numbering plans by the telecommunications regulator in each country.


See Melrose Labs Voice Gateway/Inbound Voice, Melrose Labs Tyr SMS Gateway, Melrose Labs SS7 SMSC

Melrose Labs: Our mission is to deliver pivotal services in cloud communications across mobile, fixed-line and internet for enterprises of all sizes. Through these services, we help businesses and other organisations communicate better with their staff and customers, and by doing so increase their success.