Cisco SPA525G Administration Guide - Page 211

SPA and Wireless IP Phone Field Reference SIP Tab B Parameter Retry Reg RSC Description Interval to wait before the SPA9000 retries registration after failing during the last registration. Defaults to blank. RTP Parameters Parameter RTP Port Min RTP Port Max RTP Packet Size Max RTP ICMP Err Description Minimum port number for RTP transmission and reception. Minimum port number for RTP transmission and reception. Should define a range that contains at least 10 even number ports (twice the number of lines); for example, 100 - 106. Defaults to 16384. Maximum port number for RTP transmission and reception. Should define a range that contains at least 10 even number ports (twice the number of lines); for example, 100 - 106. Defaults to 16482. Packet size in seconds, which can range from 0.01 to 0.16. Valid values must be a multiple of 0.01 seconds. Defaults to 0.030. Number of successive ICMP errors allowed when transmitting RTP packets to the peer before the SPA9000 terminates the call. If value is set to 0, the SPA9000 ignores the limit on ICMP errors. Defaults to 0. Cisco SPA and Wireless IP Phone Administration Guide 209