* ''' encoline ''' [http://faq.bintec-elmeg.com/images/6/6d/Benutzerhandbuch_encoline.pdf Konfigurationshilfe] [http://faq.bintec-elmeg.com/images/4/42/Testmatrix_SIP_Provider_f%C3%BCr_FAQ_encoline.jpg Testmatrix]
* ''' enviatel: ''' [http://faq.bintec-elmeg.com/images/1/11/Benutzerhandbuch_enviatel.pdf Konfigurationshilfe] [http://faq.bintec-elmeg.com/images/8/8f/Testmatrix_SIP_Provider_f%C3%BCr_FAQ_enviatel.jpg Testmatrix]
* ''' equada ''' [http://faq.bintec-elmeg.com/images/e/ed/Benutzerhandbuch_equada.pdf Konfigurationshilfe] [http://faq.bintec-elmeg.com/images/0/06/index.php?title=Datei:Testmatrix_SIP_Provider_f%C3%BCr_FAQ_ecotelBCr_FAQ_equada.jpg Testmatrix]
* ''' EWE-Tel ''' [http://faq.bintec-elmeg.com/images/c/c8/Benutzerhandbuch_ewe-tel.pdf Konfigurationshilfe] [http://faq.bintec-elmeg.com/images/e/e3/Testmatrix_SIP_Provider_f%C3%BCr_FAQ_ewetel.jpg Testmatrix]
* ''' foncloud ''' [http://faq.bintec-elmeg.com/images/e/e7/Benutzerhandbuch_foncloud.pdf Konfigurationshilfe] [http://faq.bintec-elmeg.com/images/2/27/Testmatrix_SIP_Provider_f%C3%BCr_FAQ_foncloud.jpg Testmatrix]