The EnableSipProxyServer procedure is used to specify the network address and UDP port of a SIP proxy server. The telephony engine will then use the proxy for all out going calls in addition to receiving information from the proxy for in coming calls.

Namespace:  LanScape
Assembly:  LMEVoipManaged (in LMEVoipManaged.dll) Version: 6.0.5226.26700


public VoipMediaEngine..::.TELEPHONY_RETURN_VALUE EnableSipProxyServer(
	string SipProxyAddress,
	uint SipProxyPort
Visual Basic (Declaration)
Public Function EnableSipProxyServer ( _
	SipProxyAddress As String, _
	SipProxyPort As UInteger _
Visual C++
VoipMediaEngine..::.TELEPHONY_RETURN_VALUE EnableSipProxyServer(
	String^ SipProxyAddress, 
	unsigned int SipProxyPort
public VoipMediaEngine..::.TELEPHONY_RETURN_VALUE EnableSipProxyServer(
	String SipProxyAddress,
	UInt32 SipProxyPort


Type: System..::.String
The network address of the SIP proxy server. This string can be an IP address in dotted decimal format (i.e. or a UNC network name of the device on the network.
Type: System..::.UInt32
The UDP port the SIP proxy is using for the reception of network data.

Return Value

If the function succeeds, the return value will be SipSuccess.

If the function fails, the return value will be one of the following values as specified by the VoipMediaEngine..::.TELEPHONY_RETURN_VALUE data type.

Return ValueDescription
This value is returned by telephony API procedures to indicate general API failure. This error value is used as a "catch all error". If you receive this error, check to make sure that all parameters specified in the API procedure call are correct. Particularly, verify that pointers to memory regions are valid. This error return value is only used if a mapping to another specific error value does not exist.

(API return value)

One of the telephony API procedures was called by application software and was passed a pointer to an invalid memory address. Normally this error will occur when application software passes NULL pointer values to the telephony API. For managed code applications, you should never see this error unless your process space has exhausted memory.

(API return value)

Application software specified an invalid telephony handle in one of the API procedures. This usually indicates memory corruption on the part of application software.

(API return value)

A network address was specified as a UNC name and DNS was used to obtain the destination IP address. DNS could not resolve the UNC network name. Make sure the spelling you specified for the destination machine is correct.

(API return value)



See Also