# How do I set up WhatsApp with a sipgate mobile number? #### Use WhatsApp with a mobile or landline number With a mobile number ported to sipgate or a newly booked mobile number, you can activate WhatsApp via SMS or call. When activating with your sipgate landline number, you will not receive an SMS, but rather a call with the activation code for WhatsApp. The 0211 test numbers in the 30-day trial phase cannot be verified. #### Registration and verification via SMS SMS sent automatically from abroad via so-called "cheap routes" are sometimes not delivered. This means that SMS sent via web SMS providers may occasionally not arrive on sipgate SIM cards. When using sipgate SIM cards, this may also affect, for example, the registration SMS from iMessage (Apple) and WhatsApp or mTANs from online banks. However, this can sometimes be easily bypassed: for example, you can also verify a WhatsApp account by means of a call. Although this limitation is annoying, it is only a temporary problem. We are currently contacting all M2M SMS providers to encourage them to configure their routes to our network correctly. If you notice that you are not receiving a verification SMS, for example, please contact the respective provider and ask them to connect their SMS route to the sipgate Wireless network. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/mobilfunk/wie-richte-ich-whatsapp-mit-einer-sipgate-mobilnummer-ein.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.