Introduced:HT8868VOIP payphone is our company's latest patent products. This model is manufactured according to VOIP standard and SIP agreement, support the third party voice software package base on SID standard, SIP equipment, SIP agent, SIP registered server, SIP media network, etc. This model not only has all the traditional payphone functions, but also has network communication function, that is, sending voice information through network. So under the situation of cheap network rate, it can greatly reduce the cost of long distance call, especially the international distance one. This model is the best choice of the long distance call operation, can be used in many public places. HT8868 series is specially designed to satisfy different needs of the customers in different environments.