Multiplle Connections to the same SMSC

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Author Message
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 580
Registered: 08-2008
Posted on Thursday, March 12, 2009 - 05:38 pm:   

From a tech support e-mail:

>> Hello Keith,
>> I would like to ask you if its possible to have more than one SMPP
>> connections using the same credentials (same IP, username and password)
>> with
>> the only difference being the sender address.
>>
>> Our scenario is as follows:
>> A provider has opened an account to their SMSC for 7 5digit codes. All
>> credentials are the same, apart from the 5digit codes.
>> When we try this, we get this error message:
>> SMPP Failure -- Unable to login to SMPP server with specified parameters.
>> ERROR: ESME Already in Bound State - ESME_RALYBND (0x05)
>> Please keep in mind that
>> in the smsgw.ini file we do set a "Routename=" parameter in order to
>> select
>> which interface the SMS will be sent from.
>>
>> Any ideas how to overcome this error?
>> Thank you!

It's not a problem, as long as the provider allows multiple connections for the same account. It appears that provider does not allow it (or that account on the provider is not enabled to allow it).

Often times multiple connections to the same account are used for high volume throughput reasons. However, it appears that the provider is limiting the connections in this case.

If the goal is only to be able to use sender based routing to route these messages to the proper correction, there is also another solution (requires NowSMS 2007 or later). In the "Default Sender Address" field, it is possible to specify a comma delimited list of sender addresses. NowSMS will still use the first entry as the "Default Sender Address" for messages that are sent via the connection that do not have a sender address. However, other listed sender addresses can be used to facilitate sender based routing.

In this particular case, it appears that sender based routing is not being used, and instead explicit routing information is submitted with each message. In this case, either put a comma delimited list of sender addresses in the "Default Sender Address" field to specify which addresses are allowed ... OR ... check "Allow Sender Address Override", which will keep NowSMS from forcing all messages to use the "Default Sender Address".

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Des
NowSMS Support