Which one is better: “in-house customer service” or “outsourced customer service”?

i think in-house marketing better than because it's required experince in same field most of out source  is they've general experice not same what you're looking forward 

I believe that here in the Gulf we have a vast experience of outsourced customer services.

I define these as the "apologizes department", oligopoly or monopoly  positions on the market support this approach which has nothing to do with customer service but more with cost reduction.

I strongly support the internal customer service, in addition I strongly support top management sponsorship of the the customer service department, the organization should know that customer complaints are to be taken seriously.

I believe In house provides  more confident to the customer's due to fast turn around time.

The four basic business models of online business is a popular concept by Web Marketing teacher Marco Hurst.tgariba every online business fits at least one of the basic models Alorbah.bed companies diversify by two or more models to take advantage of a wider overlapping rules of the four basic Alamlae.alnmazj, according to Hirst, hosting content, e-commerce, generation and customer support lead.

Both are equally important and works in retail division 

It depends on the situation at hand; if the in-house service team isn't performing to the expected standards, then you may think of an "outsourced customer service team", but otherwise it would costly & wastage to bring in an "outsourced customer service team" yet an "in-house customsr service team" is performing.

Both are so important to the company because in house customer service maintains firms clients while out source service markets the company hence bring more clients

It can depend where your customer is based , however the key to working along term customer relationship is based on carefully listening to their requirements and emphasizing how the business you work within can meet those needs.