Voice DSP channel jitter buffer defaults. There are two types of jitter algorithms: static and dynamic. Dynamic allows the jitter buffer to grow and shrink as inter-arrival jitter changes. A static jitter buffer does not. Some examples of the voice connection types used for; Voice Over ATM (VoATM): pots-to-aal2, isdn-to-aal2, aal2-to-gr303, aal2-to-v52. Voice Over IP (VoIP) : sip-to-ds1, sip-to-gr303, sip-to-v52. Dynamic jitter buffer is not supported in VoATM case. Default jitter buffer type is static for VoATM, and dynamic for VoIP.