OfficeServ 7100 PROGRAMMINGTECHNICAL MANUAL PART 2 MAY 2009MMC: 837 SIP OPTIONSDESCRIPTION:This MMC permits the adjustments of optional Session Initiation Protocol (SIP)trunking parameters. The MGI supports SIP and H.323 on a per call-per-port basis.The settings are systemwide.¾ NOTE: When changing any IP address/value, listed below, three digits mustbe input for each (octet) field. Example 192.168.1.10 input must be: 192 168001 010SIP Stack Configuration• RE-TRANS T1: The initial re-transmission time if no answer based on theRFC2543 specification. Default 500 ms.• RE-TRANS T2: The maximum re-transmission time if no answer based onthe RFC2543 specification. Default 4000 ms.• RE-TRANS T4: The time the User Agent Server waits after receiving the ACKmessage. Based on the RFC2543 specification. Default5000ms. The range is 0~9900.• GENERAL RING: The server shall re-transmit the response during this amountof time until the requested re-transmission is received. Forexample, the wait time after sending 200 OK for INFO. Therange is 0~99900.• INVITE RING: After the client sends ACK for the INVITE Final Response, theclient cannot confirm if the server received the ACK message.The client waits for this amount of time after sending ACK forthe Final Response. The range is 0~99900.• PROVISIONAL: After receiving the Provision Response, the User Agent shallwait for this amount of time until Timeout ends. The range is0~999900.• INV NO RESP: Before sending Cancel for the Invite Request, the UserAgent shall wait for this amount of time. The range is0~99900.