A modem to modem communication system supports call waiting services by exchanging hold request and acknowledge signals before relinquishing the line servicing incoming calls. Thereafter, the modem to modem session is reestablished without having to redial. The hold request may be denied or accepted,...http://www.google.fr/patents/US20050147224?utm_source=gb-gplus-shareBrevet US20050147224 - Use of modem on hold for network management and telephone access
Use of modem on hold for network management and telephone access
Numéro de demande: 11/072,776 Numéro de publication: US 2005/0147224 A1 Date de dépôt: 3 mars 2005 Brevet délivré: US7587034 ( Date de délivrance 8 sept. 2009)
